CHAS. LENTZ & SONS 
Blooa testing Instruments 
No. 2782 
2782. 
2784. 
2786. 
2788. 
No. 2788 
Haemometer, Von Fleischrs. Manufactured by Carl Reichert 
Wien. A standard instrument for obtaining the percent- 
age of haemaglobin in the blood by dilution of a fixed 
quantity with a measured amount of distilled water and com- 
paring the resulting color with successive parts of a glass 
wedge of permanent and increasing depth of color. Price, 
complete in case ... ... • • $25 00 
Extra capillary tubes, each 30 
Directions for use accompany the instrument. 
Haemaglobinometer, Gower^s. In this instrument a measured 
amount of blood is taken and diluted with distilled water in a 
graduated tube until it is of the same color as a tinted tube 
provided, when the percentage is read off on the scale Accu- 
rate to within about 5 to lo per cent. In case 2 25 
Blood Lancet, Aseptic. Our own introduction. The lance is 
guarded from patient's view and any depth of incision can be 
obtained and maintained by the locknut ; nickel -plated. Can 
be safely and conveniently carried in the vest pocket .... 1 00 
Blood Lancett Aseptic, Dr. Judson Daland's improvement. 
Broad arrow lance at one end and trocar point at other end. 
With locknuts, aseptic, nickel-plated 1 50 
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