\ M i fcellanea Curioja . 



This Heat liquefies a Mixture of 

 equal parts of V*» and Regulus Mar- 

 tisy a>nd a Mixture of 7 parts of 

 Bijmuth and 4 of the fame Regulus 

 (growing cool) hardens with the 

 fame Degree of Heat. 

 36.4!- The Heat by which Fiery Bodies 

 do in the dark Night appear bright 

 and mining, but not in the Twi- 

 light. A Mixture of 2 parts of 

 Regulus Martis and I of Bifmuth^ 

 as alfo of 5 parts of Regulus Mar- 

 tis and i of Tin, growing cool, 

 will at this Degree of Heat be- 

 come hard. The Regulus by it felf, 

 hardens with a Heat of 146 parts. 

 61.44. The Heat, by which Fiery Bodies^ 

 in the Twilight, a little before the 

 Sun's riling or after his fetting, do 

 mine difcernably ; but not at all 

 in the clear Day-light, or at leaft 

 very obfcurely. 

 92. 5- The Heat of a fmall Culinary 

 Fire made of Sea-Coal, burning 

 freely by it felf without the help 

 Bellows. The fame is the Heat 

 of Iron, as Red-hot as it can be 

 made in fuch a Fire. The Heat of 

 a fmall Culinary Fire made of 

 Wood, is fome little matter grea- 

 ter, viu about 200 or 210 parts. 

 And the Heat of a large Fire is 

 ftill greater, efpecially if it be blown, 

 up by the Bellows. 



In 



