T^ 



* 



b _ _ 



386 Dr, Holyoke^s Meteorological Ohservaiionf, 



is, also, but justice to tbe indefatigable perseverance of Dr. Hoi- 

 yoke to state, that during the long period, in which his Registers 

 have been kept, there is scarcely an omission of a single day'^s ob- 

 servations in several years. It is hoped, that his manuscripts will 

 be deposited in the library of our University, or of some one of 

 our public literary institutions^ for the benefit of tliose^ who may 

 wish to consult them. 



It should, howeviBr, be stated, that in the opinion of some 

 srientific gentlemen, well acquainted with Dr. Holyoke's place of 



observ 



open 



air, []see his communication in 



M 



Tnoir before referred to] the reflection of the sun from the 

 neighbouring buildings must occasion a sensible augmentation 

 of heat, and that his thermometer, of course, indicates too high 



■ 



a temperature.* Dr. Holyoke would confer a further obligation 



ke th 



to ascertain whether 



this opinion is well founded ; and if so, what correction ought td 

 be applied to the Results of his past Observations. 



I am^ dear Sir, your friend 



and humble servant, 



ELISHA CLAP 



Professor Bedge, 



of the University in Cambridge 



&^ 



With regard to this Dr. Holjoke oI)Serves, "The noon observations in this 

 Register are noted one, or perhaps two degrees too high, when the sun shone 

 bright, as the thermometer is then exposed to the heat reflected from the buildings 

 on the north side of the street, which runs nearly east and west : and this circu.a- 

 stance makes same allowance necessary, in determining the precise atmospherica! 



temperature, but does not at all affect the contparison of one year or season with 

 another,'' Editors^ - , 



-± 



-i 



