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CHAS. LENTZ & SONS 
Bact(iriolosical necdks, etc. 
No. 2438 
2430. Ravenel's Bacteriologfical Inocttlating; Needle* — Heavy plati- 
num needle fixed firmly into an aluminum rod. The whole 
reversible into the tubular glass handle for convenience and 
safety in carrying to autopsies, etc. The platinum does not 
break off at its juncture with the aluminum, as is always the 
case when the platinum is fused directly into a glass rod. 
Smaller in diameter, lighter and neater than the ordinary 
needle. Price, each $0 30 
2432. Ravenel's Bacteriological Inoculating Needle, with perforated 
spear-pointed needle, each 
40 
2434. Ravenel's Bacteriologfical Inoculatingf Needle. — Large spiral 
scoop needle for transferring growth on bullion cultures of 
tuberculosis in tuberculin manufacture ; not reversible, each 
50 
2436. Bacteriolog-ical Inoculating Needle. — Platinum wire fused into 
a tubular glass rod. Well made, light and strong 
35 
2438. Robb's Aseptic Razor. — For shaving horses and other animals 
at the site of inoculation ; in mahogany case 
Easily cleaned and sterilized ; no joints for accumulation 
of septic matter. 
2 OO 
2440. Bone-Cutting Forceps. — Small, well hardened and tempered, 
and very accurate jaws cutting to the tip. For dissection, etc. , 
of guinea-pigs, etc. Straight or angular, jDrice 
2 50 
2442. Faber's Wax Pencils. — Colored, for writing on glass ; Petri 
dishes, slides, tubes, etc., yellow or blue, each 
15 
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