SCIENTIFIC NEWS. 



and of solids of greatest attraction. By Thomas Knight, Esq. 



4. Of the Penetration of an Hemisphere by an indefinite num- 

 ber of equal and similar Cylinders. By Thomas Knight, Esq. 



5. On the Motions of the Tendrils of Plants. By Thomas 

 Andrew Knight, Esq. F. R. S. (See our present Vol. p. 37.) 



6. Observations on the Measurement of three degrees of the 

 Meridian conducted iu England by Lieut. Col. William 

 Mudge. By Don Joseph Rodriguez. 7. An account of some 

 Experiments on difFerent Combinations of Flupric Acid. By 

 John- Davy, Esq. 8. On a Periscopic Camera Obscura and 

 Microscope. By William Hyde Wollaston,M. D. Sec. R. S. 

 (See our present vol. p. 26.) Q. Farther Experiments and 

 Observations on the Influence of the Brain on the generation of 

 animal heat. By B. C. Brodie, F. R. S. 10. On the different 

 Structures and situations of the solvent Glands, in the digestive 

 organs of Birds, according to the nature of their food, and 

 particular modes of life. By Everard Home, Flsq. F. R. S. 

 1 1 . On some Combinations of Phosphorus and Sulphur, and 

 on some other subjects of Medical Inquiry. By Sir H. Davy, 

 Knt. Sec. R. S. List pf Presents. Index. 



The History of the Royal Society from its Institution to the 

 End of the \Slh Century. By Thomas Thomson, M. D. 

 F. R. S. L. and E. 2 vols. 4to. price 21. 2s. and on fine paper, 

 31. 12s, 



Mr. Andrew Horn, of Wycombe, acquaints me that he has a 

 short Essay on Vision in the press, in which the Seat of Vision 

 is determined, and by the discovery of a new function in the 

 organ of Sight, a foundation is laid for explaining its mechan- 

 ism and the various phenomena, upon principles hitherto un- 

 attempted. 



Bionomia. Opinions concerning Life and Health, introductory 



to a Course of Lectures on the Physiology of Sentient Beings. 



By A. P. Buchan, M. D. of the Royal College of Physicians, 



London, 8vo. lip pages, with 8 p. Introduction. 



Where the master of a science, not to be acquired without 



deep erudition, a diligent and correct observation of facts, and 



an enlightened spirit of philosophical research, takes his 



station 



73 



