American Annual of Photography and Phtographic Times-bulletin Almanac, Bände 37-38

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American Photography Book Department, 1922
 

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Seite 283 - The unit of weight is the GRAM, which is the weight of one cubic centimeter of pure water weighed in a vacuum at the temperature of 4 deg. Cent, or 39.2 deg. Fahr., which is about its temperature of maximum density.
Seite 281 - Dry Measure. — 2 pints = 1 quart; 8 quarts = 1 peck; 4 pecks = 1 bushel.
Seite 288 - The object of this table is to enable any manipulator who is about to enlarge (or reduce) a copy any given number of times, to do so without troublesome calculation. It is assumed that the photographer knows exactly what the focus of his lens is, and that he is able to measure accurately from its optical centre.
Seite 264 - Let it be known and remembered that the reputation of the federal armies is established beyond the reach of malevolence; and let a consciousness of their achievements and fame still incite the men who composed them to honorable...
Seite 285 - Sb Argon A Arsenic As Barium Ba Bismuth Bi Boron B Bromine Br Cadmium Cd Caesium Cs CALCIUM Ca CARBON C Cerium Ce CHLORINE Cl Chromium Cr Cobalt Co Columbium Cb Copper Cu...
Seite 288 - The greater of these is the distance the sensitive plate must be from the center of the lens; and the lesser, the distance of the picture to be copied. To reduce a picture any given number of times, the same method must be followed; but in this case the greater number will represent the distance between the lens ana the picture to be copied, the latter that between the lens and the sensitive plate.
Seite 285 - Cs Calcium Ca Carbon C Cerium Ce Chlorine Cl Chromium Cr Cobalt Co Columbium Cb Copper Cu Dysprosium Dy Erbium Er Europium Eu Fluorine F Gadolinium Gd Gallium Ga Germanium Ge Glucinum Gl Gold Au Helium . He...
Seite 282 - Apothecaries' Fluid Measure 60 minims = 1 fluid drachm. 8 drachms = 1 fluid ounce In the US a fluid ounce is the 128th part of a US gallon, or 1.805 cu in.
Seite 289 - Numbers for Stops from f 11 to f 100. In the following table Mr. SA Warburton has calculated the exposure necessary with every stop from //I to//100 compared with the unit stop of the " uniform system " of the Photographic Society of Great Britain.
Seite 264 - ... of economy, prudence, and industry, will not be less amiable in civil life, than the more splendid qualities of valour, perseverance, and enterprise, were in the field. Every one may rest assured that much, very much, of the future happiness of the officers and men, will depend upon the wise and manly conduct which shall be adopted by them, when they are mingled with the great body of the community.

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