Additional KoUs. A 59 



tioned, the friends of science and iiumanlty arc Indebted to 

 him for improved methods of constructing ChinDiics and 

 Stoves; for important discoveries and improvements relative 

 to cnokerij and aliment ; for curious and highly interesting 

 experiments on heat, &c. &:c. In short, it seems to be ge- 

 nerally agreed, that he stands in the first class, if not at the 

 head, of all the practical, and particularly the economical phi- 

 losophers, now living. 



He was knighted by the King of Great-Britain in 1784, 

 and lias received many honourable testimonies of public and 

 private respect in that country. His only child, a daughter, 

 now resides in the town of Boston. 



Pneumatics. 



Prince's Aiv-Pwnp. p. 45. 



The improvement on Smeaton's Air-pump, by the Rev, 

 Dr. Prince, of Salem, In Massachusetts, is worthy of par- 

 ticular notice, and of much praise. Good judges have pro-r 

 nounced it to be the most simple, convenient, and powerful 

 of all the different kinds of this machine now in use. A 

 distinct account, however, of the several points of which 

 this improvement consists would lead to a minuteness and ex- 

 tent of detail inconsistent with the necessary limits of this 

 note. The author regrets that this circumstance prevents his 

 attempting to exhibit the merits of Dr. Prince's machine. 



Balloons, p. 45. 



In 1729, Bartholomew Gusmao, a Jesuit, of Lisbon, 

 caused an aerostatic miachine, in the form of a bird, to be 

 constructed, and made it to ascend, by means of a fire kin- 

 dled under it, in the presence of the king, queen, and a great 

 concourse of spectators. Unfortunately, in rising, it struck 

 against a cornice, was torn, and fell to the ground. The 

 inventor proposed renewing his experiment, but. the people 

 bad denounced him to the Inquisition as a sorcerer, and he 

 v/ithdrew into Spain, where he died in an hospital. 



