cfi Gunpowder — 'Antiquities — Longevity-*— Bleaching. 



Arts nnd Sciences. The fund for this premium is 500a 

 dollars in the American three per cent, ilock, which was 

 transferred to the Academy. 



MANUFACTURE OF GUNPOWDER. 



We have to requeft that our readers will have the goodnefs 

 to correct the following errata in Mr. Coleman's paper on 

 this fubject given in our lad Number, as they materially af- 

 fect the fenl'e : — Page 359, line 21, for pafed read preffed: 

 p. 360, 1. 23, for if [parks read if no [parks: p. 365, 1. 4, 

 for fulphaic read Julphite; line 13, after united with afmall, 

 read, proportion of carbonic acid, fulphate of potafh, a very 

 (mall quantity, Sec. 



Mr. Coleman informs us that the gloom is not in a heated 



:. s ftate when the powder is taking in and out of the ftove, and 



that it is furnimed at the fame time with a copper and other 



coverings. He approves, however, heating the (loves bj, 



means of fteam-tubes, as mentioned in the note, p. 360. 



ANTIQUITIES. 



Tiie Babylonian bricks, received by the Eaft India corn- 

 panv from Bagdad, are of two kinds; the one dried in the 

 fun, the other kiln-burnt or baked in a furnace. Dr. Hager 

 is now engaged upon a work on the Perfepolitan inferiptions, 

 as they have hitherto been called, found imprefled on thefe 

 bricks. The fubject is extremely curious and interefting, 

 and promifes no little gratification both to the linguift and 

 the antiquary. 



Other valuable articles, belides thofe arrived from Afia, 

 are expected from Perfia, fent by colonel Malcom. — An 

 Oriental Museum will (hortly be opened at the Eafl 

 India-houfe for their reception. 



LONGEVITY. 



In the community of Pommiers, the department of Iferes, 

 lives a carpenter, who enjoys ful) health and ftrength at the 

 age of 115 years. His elded fon is 81 ; his fecond fon 80; 

 his only daughter 6$. The father is now the ftoutelt and 

 healthieft perfon of the family. 



BLEACHING. 



The next and fucceeding Numbers of the Philofophica! 

 Magazine will contain a tranflation of a new work, juft pub- 

 limed in France, entitled, " An EJfay on Bleaching', with 

 a Defcr'iption of the new Method of Bleaching by Steam, ac- 

 cording to the Procefs oj C. Ciiaptal, and on its Applica- 

 tion to the Arts : by R. O'Reilly, of the Academy of Bo- 

 logna, Member of the Lyceum of the Arts, &c. 



We expect to be able to comprife the whole in three or 

 four Numbers. • 



