CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



11 



No. I6O 



No. 156 



Nos. 162-4. 



No. 168. 



154. 



156. 



157. 

 160. 



162. 



164. 



ALCOHOLOMETER, see Hydrometers. 



ALKALIMETERS. see Carton Dioxide Determination Apparatus. 



ALTTNDTJM CEMENT, COMBUSTION BOATS, CRUCIBLES, DISHES, FILTERS, ETC., see 

 Cement. Combustion Boats, Crucibles, Etc. 



AMMETERS, see Electrical Instruments. 



AMMONIA ABSORPTION APPARATUS, Cumming's, as modified by the Bureau of Standards, 

 for the determination of ammonia in illuminating gas. Can be filled, emptied and rinsed, 

 without disconnecting. Gives complete absorption when run at 0.6 cubic foot per hour. (See 

 Circular 48, United States Bureau of Standards) $6.50 



AMMONIA ABSORPTION APPARATUS, Folin's, complete with Folin Absorption Tube, cyl- 

 inder with rubber stopper, drying tube, and bottle. Height of cylinder, 12 inches; capacity of 

 bottle, 6 ounces 3.25 



AMMONIA ABSORPTION TUBE, Folin's. Tube only of No. 156 1.60 



AMMONIA ABSORPTION APPARATUS, Referees', filled with glass beads. Adopted as official 



by the Metropolitan Gas Referees of London 

 AMPOULES, of clear resistance glass, with flat bottom. 



No A B C D 



Capacity, cc. . 1234 



Per 100' 1.75 1.75 2.50 2.50 



AMPOULES, same as No. 162, but of amber glass. 



No A B C D E 



Capacity, cc. . 12345 

 PerlOO'.. 1.75 1.75 2.50 2.50 3.25 



F 



6 



3.25 



G 



7 



3.50 



H 



8 



3.50 



J 



9 



4.00 



4.75 



K 



10 

 4.00 



K 

 10 



4.00 



ANAEROBIC CULTURE APPARATUS 



.168. 



170. 



174. 



ANAEROBIC CULTURE APPARATUS, designed by H. M. Jones, of the United States 

 Department of Agriculture. Consists of an Alberene stone base 2 cm thick and 12 cm square, 

 with an annular groove to receive an inverted 100 mm Petri dish. The base is provided with 

 outlet tubes so that gas and pyrogallate methods may be used. The groove may be sealed 

 with paraffine or other wax. The small amount of air enclosed, about 20 cc, permits rapid 

 results to be secured, which are readily visible. (See Journal of Bacteriology, Vol. I, No. 3, 

 for May 1916. page 339) 2.25 



ANAEROBIC CULTURE JAR, Novy's, for gas and pyrogallic acid methods, with removable 

 top permitting Petri dishes to be used. The two sections can be clamped firmly together, and 

 are furnished with a rubber gasket in addition to ground flanges, making an 'air tight joint. 

 Height of lower section, 100 mm; diameter, 140 mm. Complete with three metal clamps and 

 gasket 12.00 



ANAEROBIC CULTURE TUBE. Giltner's H Tube, for the cultivation of anaerobic and other 

 bacteria. The tube consists of two test tubes connected near their mouths by a short piece 

 of glass tubing, permitting the culture to be placed in one tube and the chemicals in the 

 other. Especially useful in determining the presence of and in isolating Bacillus Abortus from 

 infected mucous membranes, as surface colonies may readily be obtained 1.10 



ANATOMICAL JARS, see Jars, Specimen. 



