170 Augujl 1749. 



which the clouts are made wet. And 

 though the bottles fhould be hung up in 

 the funfhine, the above way of proceed- 

 ing will always have the fame effed *. 



Augujl the i6th. THE occidental Ar- 

 bor vitte ~^ 9 is a tree which grows very 

 plentiful in Canada, but not much further 

 fouth. The moft foutherly place I have 

 feen it in, is a place a little on the fouth 

 fide of Saratoga, in the province of New- 

 Xork) and likewife near Gaffes, in the fame 

 province, which places are in forty-two 

 degrees and ten minutes north latitude. 



Mr. Bartram, however, informed me, 

 that he had found a fingle tree of this kind 

 in Virginia, near the falls in the river James. 

 Dodor Golden likewife aflerred, that he had 

 feen it in many places round his feat Cold- 



ingham, 



* It has been obferved by feveral experiments, that any 

 liquor dipt into another liquor, and then expofed into the 

 air for evaporation, will get a remarkable degree of cold ; 

 the quicker the evaporation fucceeds, after repeated dip- 

 pings, the greater is the cold. Therefore fpirit of wine 

 evaporating quicker than water, cools more than water; 

 and fpiric offal ammoniac, made by quick-lime, being ftill 

 more volatile than fpirit of wine, its cooling quality is Hill 

 greater. The evaporation fucceeds better by moving the 

 veffel containing the liquor, by expofing it to the air, and 

 by blowing upon it, or ufing a pair of bellows. See de 

 Mairan, DiJJertation fur la Glace^ Prof. Ricbman in Nc<v. 

 Comment. Petrop. ad an. 1747, & 1748. p. 284. and Dr. 

 Cullen in the Edinburgh pbyfecal and literary EJJays and Qtftr- 

 wations. Vol. II. p. 145. F. 



f Tbiya occidentalism Linn. 



