METEOROLOGICAL INSTRUMENTS. 115 



Fig. 595 Fig. 596. Fig. 597. 



Price of Fig-. 595, $1.75. 



" '*" 596. $2.00. 



" 597, $1.75. 



Price of Fig. 598, $1.37. 

 " 599, $2.00. 

 " 600, $1.50. 



