282 



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



3832 



3834 



3836 



3828 STOPCOCKS, glass, capillary. The bore of the stopper is exactly the same 



as the bore of the tubes, each $2.70 



3832 STOPCOCKS, glass, Geissler's. 



Bore, m.m 1 2 3 4 5 6 8 10 



Each $1.50 1.75 2.00 2.40 2.75 3.75 5.00 7.50 



3834 STOPCOCKS, glass, Geissler's, bent, same price as No. 3832. 



3836 STOPCOCKS, glass, Geissler's 3-ways, new style. 



Bore, m.m 1 



Each. $ 2 - 00 2 - 50 3 - 



3838 3840 3842 



3838 STOPCOCKS Glass, Fresenius, right angle. Bore 1 m.m $.175 



3839 STOPCOCKS Glass, Fresenius, right angle. Bore 2 m.m 2.00 



3840 STOPCOCKS, Glass, Geissler's, angle of 45 degrees. Bore 2 m.m 2.50 



3842 STOPCOCKS, glass, Geissler's, 3 ways. 



Bore, m.m 1235 



Each $2.00 2.50 3.00 4.50 



3843 STOPCOCKS, Glass capillary, three-way $4.00 



3844 3846 3848 

 3844 STOPCOCKS, Glass, Geissler's, 4 ways. 



Bore, m.m 1 2 3 5 



Each $3.00 3.50 4.50 7.00 



3846 STOPCOCKS, Glass, Geissler's, latest form, with plug bored at an angle, 



bore 2 m.m , $2.50 



3848 STOPCOCKS, Glass, Geissler's latest form 3 ways, with three side tubes; the 

 stopper has two slanting bores. 



Bore, m.m 2 4 



Each $3.00 5.00 



NOTE Any of the above Glass Stopcocks can be used on any form of 

 Burettes, etc., made to order. 



3849 3851 



3849 STOPCOCKS, Geissler's Mercury Seal Stopcock, very accurately ground, same 

 as used on Vacuum Pumps where a very tight joint is necessary. 



Size, m.m 2 4 



Price $4.00 5.50 



3851 STOPCOCKS, Hard Rubber, with both ends for rubber tubing connection, 



bore J^-inch, for use with HS $0.75 



