XX 



On the hereditary instinctive propensities of Animals. By Thomas 

 Andrew Knight, Esq. F.R.S , page 476 



On Meteorological deductions from Observations made at the Obser- 

 vatory at Port Louis in the Mauritius, during the years 1833. 1834, 

 and 1835. By John Augustus Lloyd, Esq. Surveyor-General of 

 that Island, F.R.S 477 



On the Development and Extinction of regular doubly refracting struc- 

 tures in the crystalline Lenses of Animals after death. By Sir David 

 Brewster, K.H. LL.D. F.R.S 478 



Observations on the minute structure of the higher forms of Polypi, 

 with observations on their classification. By Arthur Farre, M.B.. 478 



Observations on the minute structure of some of the higher forms of 

 Polypi, with views of a more natural arrangement of the class. By 

 Arthur Farre, M.B. Lecturer on Comparative Anatomy at Si. Bar- 

 tholomew's Hospital 479 



On the Temperature of Insects, and its connexion with the functions 

 of Respiration and Circulation. By George Newport, Esq 479 



Observations on the Dry-rot of Ships, and an effectual method to pre- 

 vent it pointed out. By James Mease, M.D 482 



Experimental Researches on the conducting powers of wires for Elec- 

 tricity ; and on the heat developed in metallic and liquid conductors. 

 By the Rev. William Ritchie, LL.D. Professor of Natural Philo- 

 sophy in the Royal Institution of Great Britain, and of Natural Phi- 

 losophy and Astronomy in University College, London 482 



On the Ipoh or Upas poison used by the J acoons and other aboriginal 

 tribes of the Malayan peninsula. By Lieut. T. S. Newbold, Aide- 

 de-Camp to Brigadier-General Wilson, C. B... , 483 



Delia Velocita del Vento. Di Luigi Dau, Dottore in Matematica e 

 Fisica ».^.« , 484 



Consid6rations physiques sur le passage Nord-ouest. By the same ... 4S4 

 Causes dela Variation diurne de V Aiguille aimantee, de la Lumiere 

 zodiacale, des Aurores Boreales, et Methodesimplifieepour lereleve- 

 ment des Longitudes. Par Demon ville , .. 484 



On the elementary structure of the Muscular Fibre of Animal and Or- 

 ganic Life. By Frederic C. Skey, Esq., Assistant Surgeon to St. 

 Bartholomew's Hospital, F.R.S 4S4 



Sequel to an Essay on the Constitution of the Atmosphere, published in 

 the Philosophical Transactions for 1826 ; with some account of the 

 Sulphurets of Lime. By John Dalton, D.C.L. F.R.S 485 



Researches on the Tides. Eighth Series. On the progress of the Diur- 

 nal Inequality-wave along the coasts of Europe. By the Rev. Wil- 

 liam Whewell, F.R.S. &c 485 



Note on the Fluctuations of the Height of High-water due to changes 

 in the Atmospheric Pressure. By J, W. Lubbock, Esq. M.A. F.R.S. 485 



On an improved mode of constructing Magnets. By James Cunning- 

 ham, Esq. Member of the Cork Scientific and Literary Society ... 486 



