236 



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



3615B 

 3615B 



3616 



3620 



3622 



3623 (a) 



PIPETTE CALIBRATING PIPETTE Ostwald's, for calibrating Bur- 

 ettes, capacity 2 cc., with two marks. Each $ 1.25 



PIPETTES, Volumetric, with stopcock and safety reservoir to receive surplus 

 of liquids. 



Capacity, c.c . 2 5 10 25 50 100 



Each $2.50 2.75 3.00 3.25 3.50 4.50 



PIPETTE Overflow, Automatic, with patent three-way stopcock and reser- 

 voir for collecting the excess. 



Capacity, c.c 10 15 25 50 100 



Each $3.00 3.00 3.50 3.75 4.52 



PIPETTE Overflow, Julian's, for. equal successive portions of liquids. 



Capacity, 15 c.c., unless otherwise ordered, without bottle $12.50 



3623(a) PIPETTE CALIBRATING, as designed by Prof. C. W. Foulk of the 

 Ohio State University. The use of the stopcock as the lower mark 

 eliminates one-half of the readings that would otherwise be neces- 

 sary a-nd increase the accuracy of the instrument. Full directions for 

 use will be sent with the pipette. Each 7.50 



3616 



3620 



3622 



3623(b) 3623(d) 



3623(b) PIPETTE Box, of sheet copper, with overhanging cover, for sterilizing 



pipettes; size 4x4x12 inches $ 2.50 



3623(c) PIPETTE Box, same as above, but made of sheet iron 1.75 



3623(d) PIPETTE Box, cf sheet copper, size 2 inches by 15 inches 2.00 



3623(e) PIPETTE Box, of sheet iron, size 2 inches by 15 inches 1.50 



3624 PLATES, Blue glass, Cobalt glass. 



.' .2x2 3x3 



Size '. 



Each 



3626 PLATES, Glass, Heavy Plate, rough on one side. 



Size, square inch 4 5 6 



Each $0.25 .30 .35 



7 

 .40 



.50 .65 



.$0.10 



3 10 

 .90 



15 



12 

 1.00 



