^0 



8 





R E M A >R K S -o n t he 



ICE, When Capt. James -f- wintered In Charleton's Ifle, the fea froze 



in the middle of December 1631 : it remains therefore only to ex- 



h 



amine, whether the ice formed in the fea mufl neceffarily contain 

 briny particles. And here I find myfelf in a very difagreeable dilem- 



w 



ma, for during the intenfe froft of the winter, in 1776, tv/o fets of 

 experiments were made on the freezing of fea-v/ater, and pub- 

 lifhed %, contradiding one another almoft in every material point. 

 The one by Mr. Edward Nairne F. R. S, an ingenious -and accu- 

 rate ©bferverj the other by Dr. HigginS, who reads Ledures on 

 Chemiftry and Natural Philofophy, and confequently mufl be fup- 

 pofed to be well acquainted with the fubjed. I will therefore ftill 

 venture to confider the queftion as undecided by thefe expei-iments, 

 and content myfelf with making a fe\v obfervations on them^ but 

 previoully I beg leave to make this general remark, that thofe, who 

 are well acquainted with Mechanics, Chemiflry, Natural Philo- 



i 



fophy and the various Arts which require a nice obfervation of mi- 



r 



nute circumflances, need not be informed, that an experiment or 

 machine, fucceeds often very well, when made upon a fmaller fcale, 



r 



but will not anfwer if undertaken at large; and viceverfa machines 

 and experiments executed upon a fmall fcale will not produce the 



efFed, 



4- Hiftoire des Voyages, vol. LVIL edit, la iimo. p, 421. 



r 



•*• Mr. Nairne's experiments are found In the Philof. Trafif. vol. LXVI, p. i. and Dr* 



Jln^rrlns's in ^fccendfupplancnt to the Prolchllify of reaching the North Pole. p. 121, 142.. 



