II. THERMOMETRY. 225 



1036. Normal Thermometer, divided in tenths from 35 

 to -f-50 C. Will. Haak, Neuhaus am Rennwcg, Thuringen. 



1037. Two Thermometers, on the plan of Virchow, for 

 physiological investigation. 



Will. Haak, Neuhaus am Rennweg, Thuringen. 



1038. Two Thermometers, for chemical work, from 10 

 to +360. Will. Haak, Neuhaus am Renmveg, Thuringen. 



1039. Two Thermometers, from 100 to 360. 



Will, Haak, Neuhaus am Rennweg, Thuringen. 



1040. Two Thermometers, from to 150. 



Will, Haak, Neuhaus am Rennweg, Thuringen. 



1041. Two Thermometers, with divisions etched on the 

 tube. Will, Haak, Neuhaus am Rennweg, Thuringen. 



1042. Two Thermometers, for medical purposes, on the 

 plan of Traube, divided in tenths from +25 to +45 C. 



Will. Haak, Neuhaus am Rennweg, Thuringen. 



1045. Various Pressure Thermometers, on the plan of 

 Mitscherlich. Consult the adjoined pamphlet. 



Prof. Mitscherlich, Munden. 



1046. Suture Thermometer, on the plan of W. Beetz, con- 

 structed by Sauerwald, of Berlin. Consult the adjoining descrip- 

 tion and scheme. Prof. Beetz, Munich. 



1047. Model of an apparatus for measuring tempera- 

 tures by means of thermo-batteries. 



Dr. T. Fernet, Breslau. 



The apparatus permits the quick and reliable determination of the tempera- 

 ture of the several soldered places, as well as the differences of temperature of 

 any two soldered places. 



In the first case the resistances of the single conductors (except the 

 resistances of the two soldered places, which are exposed to constant tempe- 

 ratures, and show always the same resistance) may be different. In the other 

 case the resistances of all soldered places must be capable to be made equal. 



1048. Diagrams, illustrating the application oil lie apparatus 

 for the measurement of the temperature of the earth 



and of metal tools. Dr. T. Per net, Breslau. 



1049. Normal Thermometer, divided in tenths of a degree 

 from -5 to + 105 C. Ch. F. Geissler and Son, Berlin. 



1050. Chemical Thermometer from - 10 to -f 360 C. 



Ch. F. Geissler and Son, Berlin. 



105Oa. Thermometer for Cooking, range to 6OO P. 



Harvey, Reynolds, and Co. 



See Mrs. Buckton's book "Health in the House," page 153. 

 39508. P 



