LABORATORY SUPPLIES AND CHEMICALS 



85 



1. Bomb. 



2. Bomb Holder. 



3. Cork Lined Case. 



4. Thermometer. 



5. Motor. 



6. Vacuum Cup. 



7. Pressure Gauge. 



8. Rheostat. 



9. Spanner Wrench. 



2191 



Briquetting Machine 2191-10 



2191 CALORIMETER, The Riche Adiabatic. 



The Riche Adiabatic Calorimeter is constructed along practical lines, capable of 

 standing the strain of continuous work. The inside walls of the cabinet are lined 

 with one inch pressed cork and on the cover in addition to the cork is a piece of half- 

 inch hairfelt, making a tight joint with the top of the vacuum cup. All fittings are 

 brass, heavily nickeled. 



The rapidity with which results are obtained is a decided advantage. A complete 

 determination may be made in 10 to 15 minutes with an accuracy of (1) three calories, 

 thus saving from fifty to seventy-five per cent of time. The maximum time required 

 for reading is eight minutes. 



The bomb is of the Mahler-Kroeker two valve porcelain lined type, guaranteed for 

 3,000 determinations, but it should be good for at least 8,000 combustions if proper 

 cafe is taken. 



CALORIMETER, Riche Improved Adiabatic, complete with thermometer $275.00 



" " " without thermometer.. 250.00 



