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PUBLICATIONS ISSUED DURING 1917.

BULLETINS.

No. 429. February. Goat's milk for infant feeding. W. H. Jordan and G. A.

Smith. Pages 20, plates 2.

Popular edition, page 7. No. 430. March. Ground limestone for use in New York State. J. F. Barker and

W. W. Baer. Pages 12, plates 4, map 1. No. 431. March. Plant lice injurious to apple orchards, II; Studies on control of

newly hatched aphides, II. P. J. Parrott, H. E. Hodgkiss and F. H.

Lathrop. Pages 47, color plate, 1, figs. 4.

No popular edition issued. No. 432. April. Vinifera grapes in New York. R. D. Anthony under direction of

U. P. Hedrick. Pages 25, color plate 1, plates 4.

Popular edition, pages 7.
No. 433. April. Winter injury of grapes. F. E. Gladwin. Pages 33, plates 8.

Popular edition, pages 7, plates 2.
No. 434. May. Inspection of feeding stuffs. Pages 169.

No popular edition issued.
No. 435. May. Culture of the globe artichoke. J. W. Wellington, under direction

of U. P. Hedrick. Pages 4, plates 2, figs. 3.

No popular edition issued. No. 436. June. Blackheart and the aeration of potatoes in storage. F. C. Stewart

and A. J. Mix. Pages 42, plates 10.

Popular edition, pages 11, plates 4. No. 437. July. Neck-rot disease of onions. M. T. Munn. Pages 93, plates 11.

Popular edition, pages 8. No. 438. November. What is meant by "quality" in milk? R. S. Breed, H. A.

Harding, W. A. Stocking, Jr., and E. G. Hastings. Pages 19.

No popular edition issued. No. 439. November. The number of bacteria in milk. James D. Brew and W. D.

Dotterrer. Pages 45.

Popular edition, pages 12. No. 440. `December. Analyses of samples of commercial fertilizers collected by the

Commissioner of Agriculture during 1917. Pages 62.

No popular edition issued. No. 441. December. Inspection of feeding stuffs. Pages 107. No popular edition

issued. No. 442. December. The radish maggot. P. J. Parrott and H. Glasgow. Pages

23, plates 8, figs. 2.

Popular edition, pages 4, plates 2. No. 443. December. The control of the bacterial quality of market milk by direct

microscopic examination. Robert S. Breed and James D. Brew.

Pages 30.

Popular edition, pages 12. . No. 444. December. The cherry leaf-beetle. F. Z. Hartzell. Pages 76, plates 8,

figs. 8.

No popular edition issued.
No. 445. December. Director's report for 1917. W. H. Jordan. Pages 24.

No popular edition issued.

TECHNICAL BULLETINS. No. 57. January. Soil flora studies: I. The general characteristics of the No. 59. March. Soil flora studies: IV. Non-spore-forming bacteria in soil.

microscopic flora of soil. II. Methods best adapted to the study of the

soil flora. H. Joel Conn. Pages 42. No. 58. March. Soil flora studies: III. Spore-forming bacteria in soil. H. Joel

Conn. Pages 16, figs. 4.

H. Joel Conn. Pages 18. No. 60. March. Soil flora studies: V. Actinomycetes in soil. H. Joel Conn.

Pages 25. No. 61. March. Facilities for lysimeter and out-door pot culture work at the

station. J. F. Barker. Pages 10, plates 2, figs. 2. No. 62. May. Determination of carbonates in limestone and other materials.

J. F. Barker. Pages 7, fig. 1. No. 63. September. Inheritance of sex in strawberries. R. D. Anthony under

direction of U. P. Hedrick. Pages 10.

CIRCULARS.

No. 52. May 20. Orchards: Location and care. U. P. Hedrick. Pages 16, REPORT

plates 2. No. 53. May 1. Culture of field beans. J. W. Wellington. Pages 4. No. 54. May 10. Milking machines. Pages 4. No. 55. May 10. The rose leaf-hopper. F. H. Lathrop. Pages 4, plates 2, figs. 3.

W. H. JORDAN.

NEW YORK AGRICULTURAL EXPERIMENT STATION,

GENEVA, N. Y., January 15, 1918.

OF THE

Department of Agronomy.

1 J. F. BARKER, Agronomist.

2 REGINALD C. COLLISON, Agronomist.

3 JAMES E. MENSCHING, Associate Chemist (Agronomy).

4 WILLIAM W. BAER, Assistant Chemist (Agronomy).

EVERETT P. REED, Assistant Agronomist.

TABLE OF CONTENTS.

I. Ground limestone for use in New York State. II. Facilit es for ysimeter and out-door pot work at the Station. III. Dete ininat n of carbonates in limestone and other materials.

1 Resigned September 1, 1917.
2 Associate Chemist in Agronomy until September 1, 1917.
3 Appointed September 1, 1917.
4 Absent on leave after July 1, 1917; in United States Naval Service.

3

AGRONOMY.

GROUND LIMESTONE FOR USE IN NEW YORK

STATE.*

J. F. BARKER AND W. W. BAER.

Five years ago we could learn of but one company in this State producing ground limestone for the agricultural trade and there was one producing marl. On the basis of the merits of this material its demand has increased rapidly until now there are 56 plants in the State engaged in the production and more than a dozen plants outside make extensive shipments to New York farmers. The 56 plants mentioned have a possible capacity of approximately 675,000 tons annually, counting only eight months of the year and a working day of eight to ten hours.

PURPOSE OF THIS PUBLICATION.

When the present fertilizer inspection law was written, about the only lime of agricultural interest on the market was high grade calcium burned lime used more for spraying purposes than for application to the soil. Accordingly provision was made for inspection of such lime material only as sold for $5 or more per ton and for the determination of calcium alone. With the large volume of ground limestone now on the market, the greater portion of which sells away below the above figure, there has arisen a demand for information regarding the relative value of different products, not furnished by the fertilizer inspection work. Bulletin No. 400 (March, 1915) and the present bulletin have been intended to fill this need. In the preparation of this report aid has been rendered by the County Farm Bureau men, who have collected samples. The data given herein represent the analyses of samples taken by these men and by representatives of this Station during the season of 1916. In a few cases, indicated in the tables, use has been made of data from Bulletin No. 400 where the authors have reason to believe it represents the character of the present product.

* A reprint of Bulletin No. 130, March, 1917.

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