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



509 



No. 14098. No. 14102. 



No. 14116. No. 14120. No. 14122. No. 14126. 



14092. SACCHAEOMETER, Einhorn's Fermentation, for the estimation of sugar in urine. Consists of 



a graduated fermentation tube on foot and a graduated test tube. The percentage of sugar 

 is read directly on the tube. $0.75 



14093. GRADUATED TEST TUBE only for No. 14092 30 



14096. SACCHAROMETER, Einhorn's Fermentation, set of two, one for the urine under examination, 



the other for normal urine to which glucose has been added to test the efficiency of the yeast 



used. With graduated test tube 2.00 



14098. SACCHAROMETER, Lohnstein's for the accurate determination of sugar in diluted urine. Com- 

 plete with graduated test tube, in case -with directions for use 2.50 



14102. UREA APPARATUS, Folin, for the determination of urea in urine, consisting of an Erlenmeyer 



flask with one-hole rubber stopper, and special urea bulb 1-75 



14103. UREA BULB only for No. 14102 1.20 



14106. UREA APPARATUS, Van Slyke-Cullen, for the determination of urea in blood and urine. The 



apparatus consists of 9 heavy walled glass test tubes fitted with two-hole rubber stoppers, 

 through which are inserted Folin Ammonia Absorption Tubes and connecting tubes, mounted 

 in a heavy wooden block. Complete with rubber connecting tube, brass Filter Pump No. 5476A, 

 Coupling No. 5480A, and a 5 gram bottle of urease. (See Journal of Biological Chemistry, Vol. 

 XIX, page 211, 1914) : 11.00 



14107. FOLIN AMMONIA TUBES only of No. 14106 each .55 



14108. CONNECTING TUBES only of No. 14106 each .20 



14109. TEST TUBES only of No. 14106 each .35 



14110. UREASE for No. 14106 per 5 gram bottle .75 



14114. UREOMETER, Doremus', for the rapid quantitative determination of urea in urine by the hypo'- 



brornate method. Consists of a graduated pipette and a fermentation tube graduated to read 

 to 1/10 per cent. Complete with directions for use 1-00 



1411fi. UREOMETER, Doremus', same as No. 14114, on glass foot 1.00 



14117. DROPPING PIPtiTTE only for Nos. 14114 and 14116, graduated at 1 cc 15 



5290. SUPPORT, Hardwood, with brass clips, for No. 14114 1.00 



14120. UREOMETER, Doremus'-Hinds, with glass stop-cock and side tube graduated in tenths of a cc 

 for delivering accurate amounts of urine without permitting the escape of gas from the bulb. 

 On glass foot 3.60 



14122. UREOMETER, Squibb's, for the approximate determination of urea in urine by displacement. 

 Complete with 50 cc bottle of reagent, vials, graduated pipette, graduated cylinder, with direc- 

 tions for use 3.50 



14126. URICOMETER, Ruhemann, for estimating directly the amount of uric acid in urine in parts per 

 1000 5.00 



