LABORATORY SUPPLIES AND CHEMICALS 



371 



THERMOMETERS 



In bacteriological work it is essential that the thermometer be reliable and 

 accurate. Those which we list below have been found entirely satisfactory in the 

 different kinds of work for which they are intended. 



o 



6454 



6450 



6452 



6448 



6448 Incubator Thermometer. This high grade thermometer is made of the 

 best quality normal glass and is provided with a milk glass scale on 

 which the standard temperature, 37J4, is indicated by a red line. 

 Length, 500 mm.: scale to 60C, graduated in 1/10 $7.50 



S448a Incubator Thermometer, as above. Length, 450 mm.; scale to 50C, 



graduated in 1/5 6.00 



6450 Incubator Thermometer, self-registejing; maximum and minimum on Sixe's 

 system. The milk glass scales are 160 mm. in length and are gradu- 

 ated from minus 20 to plus 50C. The standard temperature is 

 indicated by a red line. The lower part for insertion in the tubulation 

 of the incubator is 200 mm. long. The thermometer is furnished 

 complete with horse-shoe magnet for readjusting the indicators 7.50 



6452 Incubator Thermometer with very distinct graduations on a white back- 

 ground. Graduated from to 50 C with standard temperature indicated 

 by a red line. Total length 250 mm 3.00 



6454 Chemical Thermometer with Centigrade scale etched in degrees on stem 



with white background. Length 300 mm. Scale graduated to 100C.. 1.10 



6454a Chemical Thermometer, as above. Length 300 mm. Scale graduated to 



150C 1.25 



6454b Chemical Thermometer, as above. Length 350 mm. Scale graduated to 



200' C 1.35 



6454c Chemical Thermometer, as above. Length 400 mm. Scale graduated to 



360 C . . 1.50 



