BAIRD &TATLOCK. (LONDON) LTD. 



842 



842 





829-841 842 



829' Haemoglobinometer, Dr. Oliver's, with candle-light standards, complete in case each 496 



830' Extra for daylight standards and nine riders . . . . . . . . ,. 3 3 



83 l r Physiological riders .. .. ... 012 I 



Separate parts : 



832 r Special lancet .... 028 



833' Capillary measuring pipette . . . . . . . . 050 



834' Mixing pipette . . ..010 



835' Blood cell ...... . . 076 



836' Blood cell, cover glass . . . . . . . . .,01 



837' Standard candles ; per doz. . . . . . . . . . . . . ,, 00 



838 T Dr. Oliver's observation instrument, recommended for hospital and surgery use, as being more 



convenient and accurate than the portable collapsible form .. .. .. each 1 10 



839' Special binocular tintometer (recommended where extensive work is undertaken, and indis- 

 pensable when original investigations work, outside blood-colour measurement is to be 

 done) .. .. .. .. . . .. .. .. each 1 10 



840' Dr. Solley's observation case . . . . . . . . . . . . ,, 300 



841 T Ditto, ditto, fitted with standards and physiological riders complete . . . . ,, 618 



For general purposes the set with candle-light standards is used and' consists of 



(A) Morocco, spring-fastening case. 



(B) Collapsible tintometer giving two equal observation apertures for the blood mixture and the standard, 

 (c) Two sets of standards, in steps of 10 degrees, from 10 to 120. 



(D) Two riders, one for each slab of standard grades. 



(E) Blood-cell, with measured blue cover-glass. 



(F) Needles and worsted, to dry out measuring pipette. 



(G) Special lancet, in screw case. 



(H) Capillary measuring pipette, accurately gauged to 5 cmm. 



(i) Mixing pipette. 



(K) Candle holder. 



(L) Candles. 



842' Haemophotograph, Prof. Dr. G. Gartner's, for the estimation of haemoglobin in blood, in case 



each 1 13 



CROSS STREET HATTQTST GARDEN, E-C 



174 



