12 



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



J 



No. 186. 



No. 188. 



184. 



186. 



ANEMOMETER or WIND GAGE, for indicating the velocity of the wind in miles, consisting of 

 a vertical shaft, to the upper end of which are fastened four arms, each carrying a Robinson 

 hemispherical copper cup. These cups turn in one direction, regardless of the direction of 

 the wind. The registering dial is so divided as to show velocities from one hundredth of a 

 mile to 10,000 miles. All parts are interchangeable. Each instrument is standardized and 

 fully warranted. Weight, 3% Ibs $30.00 



ANIMAL BOARDS, of wood, with hook in each corner, for use in animal experiments. Small 

 size suitable for guinea pigs and rats; large size for cats and small dogs. 



No A B 



Length, mm 320 650 



Width, mm 200 300 



Each 3.25 4.00 



188. ANIMAL CAGE, scientifically designed and constructed, affording humane conditions and entire 

 security and convenience in studying animals undergoing bacteriological or microscopical 

 examination. The removable pan in the bottom renders the daily care of the animals easy, 

 and permits the employment of every precaution for insuring cleanliness. Dimensions: 18 

 inches long, 18 inches wide, and 13% inches high 12.00 



192. ANIMAL CAGE, Helm, with two compartments, for breeding mice and other small rodents. 

 Made of wood, lined with galvanized iron, with shelf for food, runway of wire cloth and re- 

 movable drawers. Dimensions, 20 x 12 x 12 inches 12.00 



194. ANIMAL CAGE, Vaughan's, collapsible, rendering it easy to sterilize. Sides, bottom, and top 

 come apart so that it can be packed away in small space. Height of cage, 12 inches; length, 

 20 inches; width, 15 inches; height over all, 17 inches 15.00 



(For illustration, see page 13.) 



