801 



SOI' Haemoglobinometer Scale, Tallquist's, consisting of a book containing standard filter 



paper, m perforated squares which is soaked with undiluted blood, and^o njared w I 



a paper-coloured scale, suitable for use at the bedside each 



50 



X02 1 



802 



Haemacytometer, Dr. Gowers', for the numeration of the blood corpuscles, complete in 

 case with descriptive pamphlet . . . . . . . . each 



Separate parts : 



A. Pipettes, 995 cubic millimetres 



B. 5 ,. 



C. Microscope stage and plate 



D. Glass test vessel 



F. Needle, guarded . . . . 



DESCRIPTION OF ILLUSTRATION. 



(A) Pipette for measuring the diluting solution. (B) Capillary tube for measuring the blood, (c) Cell 

 th divisions on the floor, mounted on a slide, to which springs are fixed to secure the cover glass. (D)- 

 wliii li the solution is made. (K) Spud for mixing the blood and solution. (F) Guarded spear-pointed 

 edle, 



803' Dr. Haldane's Modification of Gowers' Haemoglobinometer, Laboratory pattern, 

 cons ; sting of Standard Solution and graduated tube, 20 cmm. pipelte and tubing, drop- 

 ping pipette and gas tube 



2 12 6 



5 

 10 

 1 15 

 1 

 3 



n 

 <> 

 I 



each 17 6 



ICHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



167 



