ALPHABETICAL INDEX. 



725 



PAGE 



Corrections, Hourly Periodic Var. Temperature . . . 579-650 



" " " " ForceofVaporand Relative Humidity 683,084 



" Monthly, for Non-periodic Var. Tem[)eratiire . . 654-679 



Cubic foot of air, Weight of Vapor in English measures . . .130 



" " " " " " Greenwich Observations . .179 



" " Dry and Saturated air compared in weight . . . ISO 



" metre of air, Weight of Vapor in French measures . . .74 



" " " " " Grammes, Kaemtz . . 192 



" " " " " " Pouillet , . 192 



Curvature and Refraction, Hypsometric correction .... 434 



D. 



Day, length of, at, different Latitudes . . . . .711 



Degrees, Centigrade, expressed in equal number of degrees of Fahrenheit , 35 

 " " " " " " Reaumur . 34 



" " scale, compared with Fahrenheit and Reaumur . 10 



" " " converted into Fahrenheit . . . 2o 



" " '' '' Reaumur . . . .28 



" Fahrenheit, expressed in equal number of degrees of Centigrade . 34 

 " " " " " " Reaumur . 34 



" " scale, compared with Centigrade and Reaumur . 8 



" '• " converted into Centigrade . . .13 



" " " " Reaumur . . . .18 



" from Time ........ 695 



" into Time ........ '693 



" length of, on Meridian and Parallel .... 698 



" Reaumur, expressed in equal number of degrees of Centigrade . 35 

 " " " " " " Fahrenheit . 35 



" " scale, compared with Centigrade and Fahrenheit . 10 



" " " converted into Centigrade . . . .32 



" " " " Fahrenheit . . . .30 



" S(iuares of . . . . . . . . 703 



Delcros, correction for capillary action, metrical .... 338 



" depression from capillary action ..... 340 



" Hypsometric Tables ...... 349 



" normal height of meniscus, in Millimetres .... 337 



" Reduction of Metrical Barometer to freezing point . . . 281 



Depression of Barometric column, capillary, Baily .... 340 

 " " *' " " Delcros . . . 340 



" " " " " Gehler . . . .339 



<' " " " " Pouillet . . . 339 



" " '* . " correction, English Barometers . . 337 



" " " " " Metrical Barometers . . 338 



Dew point, factors for deducing weight of Vapor .... 179 



