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Page 12
... light in an eclipse , and arising from the magnitude of the sun . If that body were a mere point , the whole shadow would be perfect ; but by reason of its diameter , it happens that a body which is not illuminated by the whole , still ...
... light in an eclipse , and arising from the magnitude of the sun . If that body were a mere point , the whole shadow would be perfect ; but by reason of its diameter , it happens that a body which is not illuminated by the whole , still ...
Page 18
... point will go through the window is the perspective representa- tion of it for the eye views all objects by means of rays of light , which proceed from it , to the dif- férent points of the object , in straight lines , 18 PER.
... point will go through the window is the perspective representa- tion of it for the eye views all objects by means of rays of light , which proceed from it , to the dif- férent points of the object , in straight lines , 18 PER.
Page 19
... light which come from every part of the object to the eye . Let us therefore suppose a transparent plane , A K , like a glass - window , to be fixed perpendicularly upon the ground O P , be- tween the spectator N E and the object RS TV ...
... light which come from every part of the object to the eye . Let us therefore suppose a transparent plane , A K , like a glass - window , to be fixed perpendicularly upon the ground O P , be- tween the spectator N E and the object RS TV ...
Page 21
... light in their pas- sage from original objects to our eyes ; and that the whole of this art depends upon finding the exact section , or true shape , which that cutting of the rays makes upon the picture in all kind of situations , and ...
... light in their pas- sage from original objects to our eyes ; and that the whole of this art depends upon finding the exact section , or true shape , which that cutting of the rays makes upon the picture in all kind of situations , and ...
Page 23
... light , g E , d E in their passage from the section gd , will cut the picture in the line H L. From hence , then , we may see the grand prin- ciple upon which perspective depends ; namely , in finding the lines and points into which ...
... light , g E , d E in their passage from the section gd , will cut the picture in the line H L. From hence , then , we may see the grand prin- ciple upon which perspective depends ; namely , in finding the lines and points into which ...
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Common terms and phrases
according acid amphibia ancient angles animal appears astronomy atmosphere birds body called chiefly church chyle clouds coast colour common condensed consists contains degree diameter distance doctrine earth England Epicurus equal feet figure fire fishes fixed fluid genus glass ground heat hence ichnography inches inhabitants insects Jupiter kind king larva length light lord manner matter means ment mercury metal miles Mogul empire moon motion natural history nerally object observed ocean oxyde oxygen pass person philosophy phosphorus piston planets Plate principal produced proportion Ptolemy quadrupeds quantity quicksilver rays receiver retrograde motion rivers salt Saturn sense side silver situation sometimes species specific gravity spermaceti stadtholder stars steam stone substance sulphur supposed surface thing tion tree tube usually valve vapour vessel weight whole wind word zinc
Popular passages
Page 40 - By this way of analysis we may proceed from compounds to ingredients; and from motions to the forces producing them; and in general, from effects to their causes; and from particular causes to more general ones, till the argument end in the most general.
Page 395 - Matthew then, among the Jews, wrote a gospel in their own language, while Peter and Paul were preaching the gospel at Rome, and founding a church there.
Page 40 - As in mathematics, so in natural philosophy, the investigation of difficult things by the method of analysis, ought ever to precede the method of composition. This analysis consists in making experiments and observations, and in drawing general conclusions from them by induction, and admitting of no objections against the conclusions, but such as are taken from experiments, or other certain truths. For hypotheses are not to be regarded in experimental philosophy.
Page 394 - Among these were reckoned the four Gospels of Matthew, Mark, Luke, and John; the Acts of the Apostles; the Epistles of the apostle Paul...
Page 239 - The surface of a sphere is equal to four times the area of a circle...
Page 40 - And although the arguing from experiments and observations by induction be no demonstration of general conclusions, yet it is the best way of arguing which the nature of things admits of, and may be looked upon as so much the stronger, by how much the induction is more general.
Page 149 - When the whole is put for a part, or a part for the whole; a genus for a species, or a species for a genus; the singular...
Page 205 - He is likewise to decide the elections of knights of the shire, (subject to the control of the house of commons,) of coroners, and of verderors ; to judge of the qualification of voters, and to return such as he shall determine to be duly elected.
Page 35 - ... connected together in the fancy, that the idea of the one seems, of its own accord, to call up and introduce that of the other. If the objects are still observed to succeed each other as before, this connection, or, as it has been called, this association of...
Page 112 - Hottoman to be a rescript, or answer of the sovereign, delivered, by advice of his council, to some college, order, or body of people, upon consulting him on some case of their community. The like answer, given to any particular person, is called simply rescript.