82 



CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



No. 1222. 



BLOOD TESTING APPARATUS 



ABDEEHALDEN EEAGENTS 



1219 A. NINHYDRIN (Triketohydrindene hydrate) per i/ 10 gram vial $1.75 



1219B. SILK PEPTONE, Hoecnst per gram .65 



1220. ALKALI RESERVE DETERMINATION OUTFIT for blood plasma, consisting of nine sealed 



tubes of resistance glass containing standardized phosphate solutions colored with phenolsul- 

 phonephthalein, numbered from 7.0 to 8.6 by 0.2; one non-soluble dialyzing tube; one tube for 

 making dialyzing sacs; one tube for aeration; one capillary nozzle tube; and 100 cc of phenol- 

 sulphonephthalein in. 0.8 per cent, sodium chloride indicator solution. Complete in wooden 

 pocket case with directions for use. (See Archives of Internal Medicine for June 3916) 6.00 



1220A. DIALYZING TUBES only of No. 1220 per dozen .60 



1220B. GLASS TUBES only of No. 1220, for making the dialyzing sacs per dozen .72 



1221. ALVEOLAR AIR TESTING OUTFIT, consisting of a set of 8 sealed glass tubes of resistance 



glass containing standardized phosphate solution colored with phenolsulphonephthalein and 

 numbered from 10 to 45 mm by 5 mm; one long non-soluble glass test tube; one non-soluble 

 glass capillary nozzle; one metallic comparison box to hold the specimen and two color tubes; 

 one 1000 cc rubber bag; one rubber bulb; one pinchcock; one glass mouthpiece; and 100 cc 

 of standardized sodium bicarbonate indicator solution, in wooden pocket case with directions 

 for use. (See Journal of American Medical Association Vol. LXVI, pages 1594-1596, for 

 May 20, 1916) 7.80 



1222. CAPSULES, Wright's, for collecting small amounts of blood, which may then be sealed until 

 i required for use per dozen .30 



1223. CARBON DIOXIDE APPARATUS, Fredericia, for the determination of the percentage of car- 



bon dioxide in alveolar air as an indication of acidosis of the blood. A simple device for the 

 collection of the alveolar air and the direct estimation of the carbon dioxide percentage with- 

 out the use of more elaborate gas analysis apparatus. Complete as illustrated, mounted on 

 fiber board support. (See J. J. E. Macleod, Journal of Laboratory and Clinical Medicine for 



April 1916) 17.00 



1223A. GLASS PARTS only of No. 1223 12.00 



