246 September 1749. 



mage to the walls in which they are placed 5 

 for the ftones being laid on purpofe into 

 fuch a pofition that the cracks always run 

 horizontally, the upper ftones prefs fo much 

 upon the lower ones^ that they can only 

 get cracks outwardly, and fliiver only on 

 the outfide, without going further inwards. 

 The (hivers always grow thinner, as the 

 houfes grow older. 



IN order to give my readers fome idea of 

 the climate of Quebec, and of the different 

 changes of heat and cold, at the feveral 

 feafons of the year, I will here infert fome 

 particulars extracted from the meteorologi- 

 cal obfervations, of the royal phyfician, Mr. 

 Gaulthier : he gave me a copy of thofe 

 which he had made from October 1744, to 

 the end of September 1746. The ther- 

 mometrical obfervations I will omit, be- 

 caufe I do not think them accurate ;. for as 

 Mr. Gaulthier made ufe of de la Hires 

 thermometer, the degrees of cold cannot 

 be exactly determined, the quickfilver be- 

 ing depreffed into the globe at the bottom, 

 as foon as the cold begins to be conlider- 

 able. The obfervations are made through- 

 out the year, between feven and eight in 

 the morning, and two and three in the af- 

 ternoon. He has feldom made any obfer- 

 vations in the afternoon. His thermome- 

 ter 



