TABLE OF CONTENTS 



TO THIS FIFTH VOLUME. 



APRIL 1801, 



E 



NGRAVINGS of the following Objefls: I. Mr. Clairault's Inftrument for 

 Logarithmic Computation; and, 2. llie Eleftrometer of Cit. Cadet. 



I. Some Obfervations on different Hydrocarbonates and Combinations of Car- 

 bone with Oxygen, &c. in reply to fome of Dr. Pricftley's late Objections to 

 the New Syftem of Chemiftry. By W. Cruickfliank, Woolwich. page 1 



II. On the Power of penetrating into Space by Telefcopes; with a comparative 

 Determination of the Extent of that Power in natural Vifion, and in Telefcopes 

 of various Sizes and Conftru£tions, illuftrated by fele£t Obfervations. By 

 William Herfchel, LL.D. F.R.S. (Concluded from page 554.) p. 9 



III. Enquiries relative to the Laws of Affinity. By Citizen Bcrthollet, Member 

 of the National Inftitute, &c. Abridged by Cit. Bouillon Lagrange. p. 16 



IV. Supplementary Letter on the Syphon, to the Communication at page 547 

 of tha laft Volume. By Mr. William Clofe. - . - - p. 92 



V. On the Doftrine of Heat ; particularly in Regard to the States of denfe and 

 claftic Fluidity in Bodies. In a Letter from Mr. Jofeph Aftley. p. 23 



VI. Account of an Electrometer. By Cit. C. L. Cadet. - - p. 3 1 



VII. Inquiries relative to the Experiments of Cit. Prevoft, of Geneva, on the 

 expanfive Force of Odoriferous Emanations, and of Cit. Venturi, of 

 Modena, upon the Motion of Camphor upon Water. By Dr. J. Carradori 

 del Prato. - - - - - - - p. 34 



Vol. V. b VIII. Ac- 



