vii 



On Harriot's Astronomical Observations contained in his unpublished 

 Manuscripts belonging to the Earl of Egremont. By Stephen 

 Peter Rigaud, Esq. M.A. F.R.S. Savilian Professor of Astronomy 

 in the University of Oxford page 125 



On the Correction of a Pendulum for the reduction to a vacuum, to- 

 gether with Remarks on some Anomalies observed in Pendulum 

 Experiments. By Francis Baily, Esq. F.R.S 126 



On the Nervous System of the Sphinx Ligustri (Linn.), and on the 

 Changes which it undergoes during a part of the Metamorphoses of 



the^ Insect. By George Newport, Esq 126 



An Account of the magnetieal Experiments made on the Western 

 Coast of Africa in 1830 and 1831. By Commander Edward Belcher, 

 ofH.M.S. Etna 130 



On the Use of a substance called the False Tongue in Foals. By Pro- 

 fessor Sewell, of the Royal Veterinary College 130 



Journal of the Weather, kept at High Wycombe during the year 1831, 

 with monthly Observations. By James G. Tatem, Esq 131 



Physical and Geological observations on the Lake of Oo near Bag- 

 neres de la Chou in the year 1831. By M. Neree Boubee, Pro- 

 fessor of Geology at Paris 131 



Observations on the Anatomy and Habits of Marine Testaceous Mol- 

 lusca, illustrative of their mode of feeding. By Edward Osier, Esq. 131 



On the Mammary glands of the Ornithorhynchus paradoxus. By 

 Richard Owen, Esq 132 



A Physiological Inquiry into the Uses of the Thymus Gland. By John 

 Tuson, Esq 133 



An Investigation of the Powers of the simple Supporters of Combus- 

 tion to destroy the virulence of Morbid Poisons, and of the poison- 

 ous Gases, with a view to ascertain the possibility of controling the 

 extension of contagious or epidemic Diseases. By Edward Browne, 

 Esq. F.L.S 134 



Considerations on the Laws of Life, in reference to the Origin of Dis- 

 ease. By Adair Crawford, M.D 134 



On the Water Barometer erected in the Hall of the Royal Society. 

 By J. F. Daniell, Esq. F.R.S. Professor of Chemistry in King's 

 College, London 134 



Hourly Observations on the Barometer, with experimental Investiga- 

 tions into the phenomena of its periodical oscillation. By James 

 Hudson, Assistant Secretary and Librarian to the Royal Society... 136 



Note on the Tides in the Port of London. By J. W. Lubbock, Esq. 



V.P. and Treas. R.S 137 



Researches in Physical Astronomy. By J. W. Lubbock, Esq. V.P. 

 and Treas. R.S 137 



On some Properties of Numbers in Geometrical Progression. By 

 Charles Blacklewar, Esq. B.A 139 



Account of an Improvement in the Machine for producing Engravings 

 of Medals, Busts, &c. directly from the Objects themselves, in which 

 the Distortions hitherto attending such Representations are entire- 

 ly obviated. By Mr. Bate 139 



An Account of the Construction of a fluid refracting Telescope of eight 

 inches aperture and eight feet nine inches in length, made for the 



