...through the feme medium, that a grain of fand is large enough to cover one hundred and twenty five thoufand of the orifices through which we daily tranfpire....provided that 'tis brought clofe to the fire. 4. A leas of ice may be ufed as a burningglafs. 5. A line of but an inch long, is capable of being divided...

...through the fame medium, that a grain of fa nrl is large enough to cover one hundred and twenty -five thoufand of the orifices through which we daily tranfpire....capable of being divided into as many parts as one of a mil« in length. 6. The fun is fome millions of miles nearer to us in winter than in fummer. 7. Whtn...

...head. 2. He alfo demonftratcs to you, through the fame medium, that a grain of fand is large enough to cover one hundred and twenty-five thoufand of the...clofe to the fire. 4. A lens of ice may be ufed as a burning glafs. ; 5. A line of but an inch long, is capable of being divided into as many parts as one...

...head.. 2. He alfo demonftrates to you, through the fame medium, that a grain of fand is large enough to cover one hundred and twenty-five thoufand of the...clofe to the fire. 4. A lens of ice may be ufed as a Lurning-ghifs. 5. A line of but an inch long, is capable of being divided into as many parts, as one...

...Pfyche, in the Greek language, Ggnifics both a butterfly, and the foul. one hundred and twenty- five thoufand of the orifices through which we daily tranfpire. 3. Water can be made to freeze in the middle of fumnaer, provided that 'tis brought clofe to the fire. 4. A lens of ice may be ufed as a burning-glafs....

...summer, provided that 'tis brought close to the fire. 4. A lensof ice may be used as a burning-glass. 5. A line of but an inch 'long, is capable of being divided into as many parts as one of a mile in length. 6. The sun is some millions of miles nearer to us in winter than in summer. 7 . When...