14 



SMITHSONIAN INSTITUTION 



' Tlie pressure at Rome is at Mean Sea Level, nol at station level as stated, and is probably 

 the mean of i(9 + 15 + ZV"). 



■■•The pressure values given for Utrecht trom 1849 to 18f)5 should have a correction of +■ 0.7 

 applied to them. See values in appendix, p. 27. 



