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ECHOES FROM

THE AMERICAN MEDICAL ASSOCIATION.

EXHIBITORS at the Forty-sixth Annual Session of the American Medical Association held at Baltimore, May 7-10, were asked to give their views on the following questions. Replies have been published in all numbers of the JOURNAL since the Association meeting and will continue to appear for the next two or three issues.

QUESTIONS.

1. What are your impressions of this Exhibit, either as compared with previous ones, or as considered independently of all others?

2.-(a) How do such exhibitions tend to promote the science of Medicine and Surgery? (b) Is their value to be estimated chiefly from a commercial standpoint?

3. (a) Should not all delegates and visitors of medical organizations manifest a personal interest in such displays? (b) If so, how best can such interest be incited and maintained?

ANSWERS.

AMERICAN WOOD PULP CO., BOSTON. Surgical Splints.

I. It was an excellent one from a business standpoint. Ours is a new article (Dr. Tracy's Splint Material) and has not been previously exhibited. The exhibition enabled the leading physicians and surgeons of the country to see, gathered at one place, the exhibits of those from all parts of the country who have contributed to the advancement of medicine and surgery. 2. (a) It is well for members of

the professions to see what their brothers are doing in the way of improvement. Seeing is believing" to some extent; anyhow, most men want to see wordly things before they will believe. 3. (a) Yes-for their own good. The exhibitor goes to the expense of providing an exhibit because he believes his goods will prove useful to the visitors to the exhibition. (b) Only by having the best exhibitors and latest improvements at the exhibition can interest in the exhibition be maintained; it has already been incited.

SEAWRIGHT MAGNESIAN LITHIA

SPRING CO., STAUNTON, Va.

1. This is our first attendance and we are very favorably impressed. 2. (a) By bringing before the medical profession the most approved preparations and surgical appliances, and this attaches value to the (6) exhibits from a commercial standpoint. 3. (a) They should by all means, and it is evident that many of them do not. (b) By allowing exhibitors 5-minute talks during an hour appointed by the Medical Association to receive them.

CHAS. LENTZ & SONS, PHILADELPHIA, Surgical Instruments, etc.

1. Compares very favorably with others. 2. (a) By the interchange of ideas. (b) Perhaps more from a commercial than any other standpoint.

THEODORE METCALF CO., BOSTON, MASS. Manufacturing Pharmacists.

I. We consider the exhibit to have been very satisfactory, both as regards the variety and quality of the exhibits, thanks to the indefatigable labors of Dr. Winchester. 2. By representing to the members of the medical profession the latest improvements in medicinal preparations and appliances at a time when they are free to a certain extent from the cares of practice and when from their attendance at the various meetings and discussions of papers there is a greater stimulation to investigate the newer remedies than is possible at any other time. 3. It would be to the benefit of the exhibitors if all the physicians would visit the exhibit and it would certainly be of mutual advantage, as an exchange of knowledge is always profitable and many suggestions and much information is always obtained at such meetings.

THE HOLEKAMP-MOORE INSTRUMENT

CO., ST. LOUIS, MO.

I. It is a good one and compares favorably with any of the previous ones. Has been well attended and I think all are well pleased. 2. (a) By allowing the different manufacturers to exhibit their products, to discuss their value and exchange different views and allowing the surgeon or physician to see the newer instruments and medicines and have them explained. 3. (a) Yes, and by giving the exhibitors some of their time they will learn and see many things they would not become acquainted with which are of benefit to them.

REED & CARNRICK, NEW YORK.

Manufacturing Chemists.

1. One of the best exhibits out of the many previous ones attended. 2. (a) They tend to bring to the notice of the medical profession many important improvements that would otherwise be a very long time in getting to their notice. (b) Not entirely, or the manufacturers would be few who would exhibit. 3. (a) Most certainly, if they are at all interested in the advancement of their profession. (b) By visiting the exhibit, interviewing the representatives sent by the various houses and testing the preparations exhibited in their practice.

ADEPS LANAE CO., NEW YORK.
Anhydrous Woolfat.

1. After we had arranged our humble exhibit and having time to look around at our neighbors we wondered if we would not be overlooked in the shuffle and to our agreeable surprise we found that this was the best and most satisfactory way in which to call attention to our product. Remember, this was our first exhibit. 2. (a) We consider exhibits in connection with conventions the best means possible to call attention of the medical profession to new products, instruments, chairs, etc., affording them better facilities to examine more into details than the annoying interview at their offices, in fact, bringing the exhibitor and physician more in touch. (b) The question from a commercial standpoint should not be considered, provided we have succeeded in interesting the profession. 3. We are not in a position to answer the above as we have so little experience at exhibits.

MELLIER DRUG CO., ST. LOUIS, Mo. Manufacturing Chemists.

I. An excellent exhibit in every way and very largely attended. 2. (a) They afford convenient opportunity for the personal observation of the latest improvements in pharmacy and surgical appliances. 3. (a) They most assuredly should in order to derive full benefit from their attendance at the meeting. (b) By scrutinizing carefully the character of those who make application for space.

APPLETON & CO., NEW YORK, Publishers.

L. B. SMITH, AGENT.

I. I think the exhibit is a grand success. Many thanks to the management. 2. (a) I think it is a very good way for bringing new things to the knowledge of the public.

MESSRS. GOODMAN & CO., NEW YORK. Printers and Engravers.

1. We consider it by far the best and most select class of exhibits ever before shown to the medical profession. 2. (b) We do not hesitate for a moment in mentioning that the benefit to the profession at large is of infinite value from a standpoint of promoting scientific and new and various necessaries. 3. (a) Delegates and visitors have shown in this meeting the keenest interest in displays and (b) the only way to further the same is by exhibiting constantly new and novel matters.

J. B. LIPPINCOTT CO., PHILADELPHIA. Publishers.

1. Independently of former exhibitions, the recent one impressed us as excellent at many of the stands. Quite a number of exhibitors attracted considerable attention; others but little. Those who seemed to enjoy special favor, by supplying a long-felt want, were those who dispensed their wares freely, without money and without price, especially the representatives of the various brands of malt extracts and other cooling beverages-the weather was warm and the windows of the building about 10 feet too high. 2. (a) Largely by bringing to the notice of the profession what is new in medical books, surgical instruments and appliances and drugs. (b) The value of such exhibitions do not seem to us to be commercially great. 3. Yes, for the exhibits are for the benefit of the delegates and visitors almost wholly.

OAKLAND CHEMICAL CO., New York. -The product of this company has a definite formula, known to chemists since 1817 and recently introduced into medicine. Hydrogen Dioxide is a staple product and is U. S. P. It will keep three or four months uncorked. No pressure on cork is required. This is distinctly characteristic of the Dioxide. Its properties are germicidal, antiseptic and antizymotic. Oakland Hydrogen Dioxide is recognized by competent investigators as the one perfect solution which can be used in all ways with perfect safety. It is indicated in a vast number of conditions, external and internal, and is invaluable in the sick-room.

**

HYNSON & WESTCOTT, Baltimore.— One of the unique and well appointed exhibits was that made by this well known Baltimore house. Their display embraced a general line of surgical instruments, office furniture, supporters, etc., a special feature being an automatic air-pump which forces air into the receiver by water pressure. Their exhibit occupied space number 60 and was so constructed as to reproduce, as far as possible, a physician's office. Visitors to the Cyclorama Building manifested considerable interest in this exhibit. The enterprising character of this firm has enabled them to build up a lu crative business in this and adjacent territory.

**

AMYL-KIJO CHEMICAL CO., Baltimore. -This new disinfectant is eliciting much favorable attention. It is being introduced by a Baltimore concern and its virtues appear to be well established. It is very valuable as a general disinfectant for apartments, cellars, closets, and such like. For the sick-room in contagious diseases it is very valuable. It may be applied locally to burns, cuts, punctured wounds, and for such purposes may be mixed with equal parts of vaseline and applied on a bandage. It is also efficient as a deodorizer and physicians may employ it with advantage after using iodoform or any other ill-smelling drug.

**

JEROME KIDDER MFG. CO., New York. -This exhibit presented a collection of superior high grade electrical apparatus and

contained many novel features. One in particular being the illumination of a six-inch Geissler tube demonstrating the polar effect of the pure induced or Faradic current, was a marvel of beauty and the numberless combinations of the currents for stimulation and sedation were clearly and fully explained by their representative. We learn that this form of coil is recommended by the leading electrotherapeutists, among whom may be mentioned A. H. Goelet, A. D. Rockwell, and others. All machines are warranted as represented.

**

DAVID NICHOLSON, St. Louis, Mo.— One of the oldest Malt Extracts in the country is Liquid Bread, of which Mr. David Nicholson of St. Louis is sole proprietor. At this stand many physicians tested the samples furnished and everyone noted and spoke of its pleasing and palatable flavor. Doubtless many physicians whose attention was called to the merits of the article will hereafter prescribe it in their practice. Liquid Bread is made from a private formula by the AnheuserBusch Brewing Association, and is owned by Mr. Nicholson. The exhibit was in charge of Mr. Charles Teall, who is the eastern representative.

**

H. K. MULFORD COMPANY, Philadelphia, Pa.-Even a subject of interest must be well presented to get attention. The number of visitors to the exhibit of this company/ demonstrated that both good presentation and subjects of interest were there. The exhibit was in charge of Dr. A. H. Bickers. That the pharmaceutical preparations of this firm are of a superior order of excellence is proved by the Columbian Exposition having granted them seven highest awards, two of which were medals. The greatest scientific interest, however, centered in the Diphtheria Antitoxic Serum, the beneficial effects being illustrated by immunized guinea pigs.

**

THE CHAS. WILLMS SURGICAL INSTRUMENT CO., Baltimore. The above manufacturers, importers and dealers in fine surgical instruments, orthopedic apparatus, etc., were established in 1869. The firm has gained a well earned reputation for reliable

goods, and are numbered amongst Baltimore's most successful enterprises. One of their specialties shown was the Pri-mo Ladies' Syringe. This instrument is strictly anatomical in construction, admitting of no escape of the fluid outside the perineum. It dispenses with the old-fashioned and inconvenient bed pan and rubber sheeting. The instrument is durable and easily cleaned, being removed after the douche without soiling the clothes or bed.

**

ARMOUR & CO., Chicago, Ill.-The products of this company's laboratory are numerous and invaluable. They had on exhibition their extracts of beef, both liquid and solid, for making bouillon and beef-tea. These extracts are used by all good cooks for making soups, gravies and all delicate flavorings in the kitchen. The company having unsurpassed facilities produce only articles of the best quality. Their slaughter house and laboratory adjoining enables them to produce their goods much fresher and cheaper than other manufacturers. Armour's digestive ferments and wine of beef-pepton have a world-wide reputation.

**

TARRANT & CO., New York.—Few articles are better or more favorably known than the goods handled by this house. Tarrant's Hoff's Malt Extract is a standard nutritive tonic and the pioneer malt extract introduced into the United States. The medical testimony on the virtues of this preparation is very elaborate. It is an incomparable food and remedial agent in all gastric and enteric fevers. It is pleasant to the taste and easily assimilated, thus making it a delightful beverage, a valuable nutrient and a standard tonic. Tarrant's Effervescent Seltzer Aperient is known to every practitioner throughout the world.

**

MCKESSON & ROBBINS, New York.Pyrozone was the specialty exhibited by this firm.

This article is rapidly gaining favor with surgeons in hospitals. Very great improvements have lately been made in the manner of putting up solutions of Pyrozone, so that decomposition of the peroxide of hydrogen is now avoided. In private families where there is invalidism with its unpleasant odors and dangerous excretions, Pyrozone, 3 per cent. solution, should be liberally used as a deodorant and general germicide. It is

absolutely harmless to living tissue and can be taken internally with benefit in certain troubles affecting the stomach.

**

DOLIBER-GOODALE CO., Boston, Mass. Mellin's Food was the principal article exhibited by these manufacturers of worldwide renown. The firm was represented by Dr. Jones and Mr. Delano, who courteously explained to visiting physicians the merits of this celebrated Food for the modification of fresh cow's milk. Mellin's Food took the special diploma at the California Mid-Winter Fair. This Food is a soluble dry extract of barley malt and wheat, prepared after the formula of the eminent chemist, Baron Justus von Liebig, for the modification of fresh cow's milk. It is the best substitute for mother's milk.

**

E. A. YARNALL CO., Philadelphia, Pa.The Philadelphia Surgical Instrument Houses were well represented, among whom were the E. A. Yarnall Co., presenting a complete line of instruments, which greatly appeal to the physician's requirements. A number of newly devised tools for the use of the surgeon were shown. Mr. Yarnall was personally in

attendance at the exhibit and took the addresses of many doctors who made a request for their most complete catalogue. This house pronounced the exhibition a success and expressed much satisfaction with regard to its management. Those who did not register for the catalogue should forward address at once and receive a copy.

**

RENOL CHEMICAL CO., St. Louis, Mo. This company has devised in a concentrated form a combination called Renol, Sodii Lithia Comp., which is intended to displace the administration of mineral waters. When taken in large quantities of water, Renol acts as a powerful renal tonic and stimulant. Its constituents are sodium lithiate, diuretin, digitalin, alkalies and demulcents. This remedy seems to have met a long felt want and is rapidly growing in favor. In cases of obstinate rheumatism and gout, it exercises marked benefit, while its solvent action in uric acid conditions proves this remedy invaluable. Interesting articles have appeared in various medical journals relative to this new diuretic-alterative.

WHOLE NO. 742

SINCE the discovery of the malarial parasite in 1880, by Laveran, all observers who have been placed in a position to pursue satisfactory studies of the malarial fevers have been able to confirm his observations, and the dependence of the malarial fevers upon infection with a specific micro-organism may be considered a proven fact.

Certain observers, however, particularly those in Italy, have greatly extended the original discoveries, separating the malarial parasite into several distinct types or varieties, each type of parasite being associated with a distinct type of fever. Some observers have denied the possibility of such further divisions of the parasites, but most clinicians, with a satisfactory material at their service, have recognized the existence of different types. The studies of the Italian observers have shown that, while there is a considerable similarity between the different forms, three distinct varieties of the parasite may yet be distinguished:

1. The parasite of tertian fever. 2. The parasite of quartan fever. 3. The parasite of the more irregular fever, occurring chiefly in the summer and fall, the so-called estivo-autumnal

fever."

The parasites of the regularly intermittent, tertian and quartan fevers possess the very remarkable characteristic of being associated in the blood in large groups, all the members of which are practically at the same stage of development. Thus the millions of parasites which may constitute such a group pass through their cycle simultaneously, all the parasites reaching their full development, and undergoing segmentation practically at the same time, that is, within a period of several hours; and what is most interesting, the segmentation of a group of parasites is always immediately followed by the febrile paroxysm. There are many facts which tend to show that the paroxysm depends upon some toxic substance set free in the blood