LABORATORY SUPPLIES AND CHEMICALS 



223 



3559(s) 



3560 



3560(a) 



ENGLER'S Viscosimeter; latest improved form; insulated oil container 

 cover, deep water bath with stirrer; gold-plated oil container, plat- 

 inum outlet. Complete with thermometers, ring-burner and flask. 

 This instrument is considered one of the most accurate and reliable 



instruments by the best authorities in this country : $75.00 



8^-inch Porcelain Scale Thermometer for No. 3559(s). Range 10 



to 50 C, in 1 graduations 6.00 



Same as No. 3559(s), except Range 10 to 150 C 7.50 



Same as No. 3559(s), except Range 10 to 200 C 9.00 



Flask, graduated 100 c.c-100 c.c., for No. 3559 (s) 4.50 



S560 SCOTT'S Viscosimeter, an accurate, reliable instrument, designed by Mr. 

 W. G. Scott. This instrument is so constructed that the reservoir may 

 be readily removed and cleaned. The results obtained compare closely 

 with those of higher priced instruments. Each instrument is accu- 

 rately standardized and has the time in seconds and fractions thereof 

 required for 50 c.c. of distilled water at 70 F. to be discharged 

 stamped upon the handle of the cup. The temperature of the liquid to 

 be tested is accurately regulated by water or liquids of higher boiling 

 points which surround the reservoir. The Viscosimeter with good 

 thermometer graduated to 212 F. in single degrees and with a 50 c.c. 



graduated cylinder 15.00 



For taking the viscosity of lubricating oils an accurate finely gradu- 

 ated thermometer is quite essential. For this purpose we are prepared 

 to supply a high grade thermometer graduated from 50 to 120 F., 

 in 1-5 degrees ,. . 5.00 



3560(a) ENGLER'S Viscosimeter, modified by Ubbelohde, for very fluid liquids, 



such as petroleums. Complete with two thermometers.. . 85.00 



3560(b) 



3560(b) Viscosimeter, as adopted by the Pennsylvania Railroad, delivers 100 c.c. 

 of distilled water in 34 seconds at a temperature of 100 F 



2.00 



