62 



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



1969 



1970 



1972 



1974 



1968 BULB, NITROGEN, Shepherd's, with glass tube and cork $0.50 



1969 BULB, NITROGEN, Shepherd's, with stopper ground in, 1.25 



1970 BULB, NITROGEN, Vollhard's 50 



1972 BULB, NITROGEN, Wills & Varentrapp's, with 3 bulbs 50 



1974 BULB, NITROGEN, Wills & Varentrapp's, with 4 bulbs. . 50 



1980 



1982 



1986 



1989 



BULB, POTASH, Bowen's (See No. 3238). 



1980 BULB, POTASH, Delisle's, with ground in Ca CL tube, for many uses the 

 shape of this apparatus will readily recommend itself. 

 Complete, with aluminum foot $3.50 



1982 BULB, POTASH, Geissler's, with Ca Cl a tube, cork joints 1.75 



1986 BULB, POTASH, Geissler's, with Ca Cl, tube between the bulbs 1.75 



1988 BULB, POTASH, Geissler's, with Ca CU tube between the bulbs and 



ground on 2.25 



1989 BULB, POTASH, Wetzel's, a modification of the Geissler's with great ab- 



sorbing power 2.50 



1990 



1992 



1996 



1990 BULB, POTASH, Liebig's $0.75 



1992 BULB, POTASH, Mitcherlich's 75 



1994 BULB, POTASH, Mohr's 1.50 



BULB, POTASH, Winkler's, spiral form 



1996 BULB, POTASH, Small 1.25 



1998 BULB, POTASH, Medium 1.75 



2000 BULB, POTASH, Large .3.00 



