List of Patents. 433 



bits of Observing, as connected with the Study of that Science ; also a 

 Calendar of Periodic Phenomena in Natural History, with remarks on 

 such Registers. By the Rev. Leonard Jenyns, M.A., F.L.S., &c. 1 vol. 

 8vo, pp. 440. London, John Van Voorst. 1846. This very pleating 

 and instructive work of the well known author of the ** Manual of Bri- 

 tish Vertebrate Animals," ought to be in the hands of all young Na- 

 turalists, and may also he read and consulted vnth advantage by ex- 

 perienced observers. 



15. Experimental Investigation of the magnetic characters of Simple 

 Metals, Metallic Alloys, and Metallic Salts. By William Sturgeon, Esq., 

 Lecturer on Experimental Philosophy at the Hon. East India Company's 

 Military Academy, Addiscombe. From Manchester Philosophical So- 

 ciety's Memoirs. 1846. Joseph Gullet, Bookseller, Manchester. 1846. 

 This valuable detail of experiments will be noticed on a future occasion. 



16. Wild Sports and Natural History of the Highlands (of Scotland). 

 From the Journals of Charles St John, Esq. Published in Nos. 36 and 

 37 of Murray's Home and Colonial Library. London. 1846. We have 

 perused this very amusing volume with much pleasure. From, cur ac- 

 quaintance, not only with the country so well deso'ihed by the author, 

 but also with its quadrupeds, birds, (be, ive can answer for the faith- 

 fulness of his details; and are convinced no true lover of wild moun- 

 tain and river sports will hesitate in consideHng M. C. St John as an 

 intelligent observer, and, shilful sportsman. 



17. Address on the Recent Progress of Geological Research in the 

 United States. Delivered at the Fifth Annual Meeting of the Associa- 

 tion of American Geologists and Naturalists, held at Washington City, 

 May, 1844. By Henry D. Rogers, Professor of Geology in the Univer- 

 sity of Pennsylvania, Foreign Member of the Geological Society of Lon- 

 don. Pliiladelphia. 1844. 



18. An Easy Introduction to Chemistry. By George Sparkes, Esq. 

 2d edition, pp. 88, 12mo. Whittaker & Co., London. 1846. This 

 agreeable Treatise we recommend to our Chemical readers, and also to 

 those commencing their Chemical Studies. 



1 9. On the Oscillation of the Barometer, with particular reference to 

 the Meteorological Phenomena of November 1842. By William Brown 

 jun. Richard and John Edward Taylor, booksellers and printers, Lon- 

 don, 1846. A very valuable and accurate record of good observations. 



20. Jahres-Bericht uber die Fortschritte der Chemie und Mineralogie. 

 Von Baron Jacob Von Berzelius. Tubingin, 1846. 



21. The Journal of Agriculture, and the Transactions of the High- 

 land and Agricultural Society of Scotland. July 1846. 



22. Journal of tlie Asiatic Society of Bengal. Three numbers for the 

 year 1846. , 



23. American Journal of Science and Arts. Conducted by Messrs 

 Sillimans and James D. Dana. May 1846. 



