...hair of his head. •a.- He alfo demonfttates to you, through the feme medium, that a grain of fand is large enough to cover one hundred and twenty five...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 fand is large e . nough 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 miie in length. • 6. The fun is fome millions of miles nearer to us in winter than in fummer. 7....

...through the fame 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....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...

...is large enough to cover * Pfyche, in the Greek language, Ggnifics both a butterfly, and the foul. one hundred and twenty- five thoufand of the orifices...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....