BAIRD &TATLOCK (LOM)ON) LTD. 



769 



770-771 



772 



773 



769 s Picro-Saccharometer for the quantitative estimation of sugar in urine, by Sir George 

 Johnston, consisting of 



1. .1 tube about 12 in. in length, graduated into 100 cubic centimetres, with longer divisions 

 at each 10 cubic centimetres, accurately stoppered and lipped. 



2. A tube, half the above length, and of equal diameter, accurately stoppered to hold the 

 standard solution. 



.;. A boiling tube, 10 in. long, in. in diameter (internal) lipped, and graduated at 4 fluid 



MIIIS. 



4. One drachm measure. 

 Price 



774 



r.uh 15 



Ureometer, Doremus', with i cubic centimetre pipette and indiarubbcr teat. 



770 (', ra< mated in cubic centimetres or grains .. .. .. .. .. ,, 016 



771 Graduated one side in cubic centimetres, other side in grains . . . . . . ,, 019 



Hypobromite of sodium solution is poured into the bulb-tube up to a certain mark, and diluted 



with water to fill the long arm and bend. 



The urine to be tested is drawn into the pipette to the graduation. The pipette is then passed 

 into the ureometer as far as the bend, and the nipple is pressed slowly. The urine will then rise 

 through the hypobromite solution, and the gas evolved will collect in the upper part of the tube. 



: Tlu- quantity of urea present, indicated by the volume of nitrogen liberated, is finally read off. 



771 A Wood Stands to hold above (as illustrated).. .. .. each 1 3 



772 Ureometer, Doremus', new form, with stopcock and with side tube for urine graduated 



5 cubic centimetres, in ten divisions . . . . . . tach 043 



773 Ureometer, Doremus', as above, with wood stand to suit (as illustrated) 059 

 774^ Dr. Lohnstein's Fermentation Saccharometer for undiluted urine, for use with mercury 18 



159 



