244 



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



3683 3684 3686 3688 



3683 PUMP Piccard, will evacuate 1 1. to 20 mm. pressure in 1 minute $2.75 



3684 PUMP Geissler, with valve, mounted 4.00 



3684(a) PUMP The glass parts only 2.50 



3686 PUMP Muencke's, of glass 2.00 



3688 PUMP Muencke's, of glass, with 2 suction tubes 2.00 



3689 



3690 



3691 



3689 PUMP Filter Pump, Chapman's, small, size 3 fa inches, J^-inch I. P. size. $1.75 



Chapman's, medium, size 4 fa inches, fa-inch I- P- si ze 3.25 



Chapman's, large, size 5^ inches, *4-inch I. P. size 5.00 



3690 PUMP Filter Pump, Richard's, small, size 7 inches, ^-inch I. P. size 



thread 1.50 



Richard's, large, size 7 inches, fa-inch I. P. size thread 3.00 



Richard's, extra large, size 13 inches, fa-inch I. P. size 7.50 



3691 PUMP Celeritas Filter Pumps, or Aspirators, are constructed on an en- 



tirely new idea and will produce a higher vacuum in less time and using 

 one-third less water than any other pump made. 



Small size, 3 fa inches long, J^-inch I. P. size thread 2.25 



Medium size, 4 fa inches long, J4-inch I. P. size thread 3.75 



Large size, 5^ inches long, ^j-inch I. P. size thread. 5.50 



