96 



A. DAIGGER & COMPANY, CHICAGO, U. S. A. 



ol , I oil 



i 



2252 



2250 



2253 



2260 



2272 



2274 



2275 



CENTRIFUGE ATTACHMENTS 



WILL FIT ALL CENTRIFUGES Nos. 2238-2247 



2250 HAEMATOCRIT, with two graduated blood tubes and two plain sputum 



tubes $ 6.00 



2252 PRECIPITATING ARM, with two tapering tubes for the manipulation 



of micro-organisms 6.00 



2253 GOETZ TUBE, for phosphorus determination, with graduated tip '. . 1.10 



2253a METAL SHIELD, for carrying No. 2253 Goetz Tube 1.20 



2254 PERCENTAGE TUBE, for blood analysis, for use with Haematocrit 90 



2256 PLAIN SPUTUM TUBE, for use with Haematocrit 40 



2258 PRECIPITATING TUBE, with plug and six washers, for the manipula- 



tion of micro-organisms 75 



2259 DOME PROTECTOR for Purdy Electric Centrifuges. To protect the 



operator from flying particles or liquid and to avoid contact with the 

 rapidly moving arms. It also lessens the air resistance and propor- 

 tionately increases the speed. Fits Centrifuges Nos. 2238-2243 10.75 



2260 GRADUATED URINE TUBE, designed by Dr. Charles W. Purdy for 



use with the Purdy Electric Centrifuge, and wherever his methods are 

 employed. This tube is fully graduated to 15 c.c., with very tapering tip 



for the measurement of very small quantities of sediment 60 



2262 PLAIN UNGRADUATED TUBE, same size as No. 2260 20 



2264 TUBE FOR MILK ANALYSIS. To obtain absolutely reliable test of 

 either breast or cow's milk, we have devised the graduated milk tube. 



It will give results accurate to within 1/5 of 1% of fat 60 



ALUMINUM SHIELD, to carry tubes Nos. 2260 and 2262, .90 



LANCET, spear point, for pocket 1.25 



DROPPER, new construction, for filling the blood tubes 30 



CEMENT TUBE, with 50 c.c. graduation, with tip graduated to 1/50 c.c. 

 for cement testing and for use where the proportion of sediment is 



extremely small 1.80 



2275a METAL SHIELD, for carrying No. 2275 Cement Tube 1.25 



2275b ARM, with two metal tube shields and two 50 c.c. cement tubes for test- 

 ing cement and for use when the percentage of sediment to be measured 



is very small 12.00 



2275c ARM, with two metal tube shields and two Goetz tubes for phosphorus 



determination with graduated tips 16.75 



2275d GRADUATED TUBE. Length 4^ inches, outside diameter H inch, 



graduated to 10 c.c 45 



2275e PLAIN TUBE, Ungraduated. Length of tube 4^ inches, outside 



diameter il inch 30 



2275f ALUMINUM SHIELD, for carrying tubes Nos. 2275d and 2275e 10 



