Vol. 66"/ •'• Philosophical Mugaziue. July 18'Jj 



Co\TKNTS OF NijAlBKR 32?. 



• I. On the Laws of the Condensation and Dilatation of Air and 

 the Gases, and the Velocity of Sound. By J, Ivory, Esq. M.A. 

 F.R.S ....": page '. 



II. Observations on the Notes of Birds, including an Inquiry 

 whether or not they are instinctive. By Mr. John Blackwall. . 1 



I IF. Deeds (juarta novarum Plantarum Succulentarum . By- ; ^ 

 A. H. HAWoRtHi Esq. F.L.S. &c ...i 



IV. On the Declination of the principal Fixed Stars, as observed 



at Greenwich in the Year 182.'. By Professor Bessei, 3 



V. On the Construction of the large! Refracting Telescope just 

 completed. By M. Fraunhofer 4 



VI. On the Manner of estimating the Difference of Longitude in 

 Time. By Dis-iiota 4 



VII. Defence of Mr. J.Herap.vth's Demdhstratioh of the Binomial 

 Theorem. By A Correspondent. 5 



VIII. Notices respecting New Books : — Nos. VI. to VIIT. of Dr. 

 Thomas Hforsfield's Zoological Researches in Java and the neigbour- 

 ing Islands. Analysis of Periodical Works on Natural History . . 51 — 6 



IX. Proceedings of Learned Societies:; — Geological Society; ■ j 

 New Institution for the Promotion of Zoology ; Royal Academy of 

 Sciences of Paris .' 64 — 1 



X. Intelligence and Miscellaneous Articles : — New Arrival of 

 Animals from Sumatra ; Account of the Mummy dissected by Dr. 

 Granville; White Copper; Mr. Faraday on New Compounds of 

 Carbon and Hydrog^; Mr. Donovan's Apparatus for filtering out 

 of contact with the Atmosphere; Mr. James Apjohn on Cadmium; j' 

 List of New Patents; Meteorological Table 70— to 



i 



%* Communications for this Work received by the Editor, 

 38 Shoe-Lane, will meet with every attention. 



HrCHARD TAYLOR, PKINTER, SHOE-LANE, LONDON. 



