CENTEAL SCIENTIFIC CO., CHICAGO, U. S. A. 



85 



No. 1278. 



No. 1277. 



1262, HAEMACYTOMETER, Zappert-Ewing, with counting chamber with Zappert-Ewing ruling, two 



cover glasses, one pipette for red and one for white corpuscles, in leather ease $13.50 



1263. COUNTING CHAMBER only of No. 1262, with two cover glasses; without ease 7.50 



1266. MIXING PIPETTE, Thoma, for red corpuscles, for dilution in the ratio of 1 to 100, with rubber 



tubing and mouthpiece 2.00 



1267. MIXING PIPETTE, Thoma, for white corpusles, for dilution in the ratio of 1 to 10, with rubber 



tubing and mouthpiece 2.00 



1270. COVER GLASS for Counting Chamber, square, polished, 0.4 mm thick 50 



1272. CASE for Counting Chamber, of leather, velvet lined 1.00 



1273. CASE for Complete Haemacytometer, of leather, velvet lined 2.40 



HAEMATOCRIT, Daland, see Centrifuge Accessories. 



1277. HAEMOGLOBINOMETER, Haessler - Newcomer, for rapidly and accurately estimating haemo- 



globin in blood. The outfit consists of an open tube for the specimen under test, together with 

 11 sealed color tubes containing stable artificial color .standards, graded in multiples of ten. 

 These standards are mounted in a hardwood rack with holes between them for the insertion of 

 the specimen tube. By the use of the interrupted series of standards, the color may be more 

 easily and accurately matched than with a uniformly graded scale. Complete as described with 

 specimen tube and color standards in hardwood carrying case. (See Archives of Internal Medi- 

 cine for June 1916, pages 806-808) 7.20 



1278. HAEMOGLOBINOMETER, Tallquist, consisting of a color scale of 10 tints, ranging from 10% to 



100%, bound in book form, pocket size, with 50 sheets of absorbent paper sufficient for 150 tests. 

 "With directions for use 1.75 



1280. HAEMOMETER, Sahli, with Kuttner Haemoglobin Standard, the color of which maintains its 



permanency. Complete with carefully calibrated and tested color tube and pipette, hard 

 rubber stand for tubes, and hard rubber container for blood specimen with vial and rubber 

 stopper, in case with directions for use 7.00 



1281. HAEMOGLOBIN STANDARD, Kuttner, for No. 1280 2.00 



1282. GRADUATED TUBE, 140 cmm, for No. 1280 1.50 



1283. GRADUATED PIPETTE, 20 emm, for No. 1280 1.00 



