BAIRD &L TATLOCK (LONDON) LTD, 



3326 



3331 



3332 



3326 T Fletcher's Thermo -Hydrometers (English Patent No. 12363). 

 Single hydrometers 

 Set of six hydrometers, in hanging case, with divisions 



each 



N.B. In ordering, please state range required, supplied only graduated in specific 

 gravity degrees, 50 on each spindle. 



050 

 1 5 



020 

 030 

 030 

 036 

 076 



3328 Argentometer 



3329 Urinometer, o to 60, ivory scale in leather case, best English make 



3330 Urinometer, Dr. Vogel's, two spindles (1000-1020 and 1020-1040) . . . . per set 



3331 Urinometer, in case, with graduated immersion tube 



3332 Fletcher's Thermo -Urinometer 



This is an adaptation of Fletcher's patent thcrmo-hydrometer for use as a urinometer. A most delicate 

 and sensitive thermometer is blown in one piece with the urinometer, so that the physician when taking the 

 specific gravity of a sample of urine doe-, not incur the inconvenience of having to employ a separate thermometer, 

 or of making random allowances for differences in temperature. 



The thermo-urinometer is fitted into a small leather tubular case, which packs inside a graduated urine 

 testing cylinder. The whole is contained in a leather outer case, which may be conveniently carried in the 

 breast pocket. 



3333 Urinometer, gilt brass, 6 in. long over all, o to 40, with diabetes scale, in leather case 15 



3334 Ruhemann's Urinometer, as described in Centralblat, 1902, i. 784, and Journal Chem. 



Society, 1902, ii. p. 435, by L. de Koningh, Esq. . . . . . . . . ..060 



3335 Spirit Hydrometer, underproof and overproof . . . . . . . . each 026 



3336 Saccharometer, for brewers' use, showing o to 50 Ibs. per barrel, with directions. In 



case . . . . . . . . . . each 026 



3337 Saccharometer, for brewers' use, for taking the specific gravity of beer. Graduated into 



single degrees, 1040-1080 and 1080-1125, in cardboard cases . . . . each 026 



CROSS STREET HATTON GARDETST, E'C 



