IT ' CONTENTS. 



Page 

 III. NATURAL HISTORY. 



Mineralogy.— 21. Argentiferous Native Gold in the Mines of Colombia. 

 22. On New Locality of Apophyllite, .... 332 



Geology 23. New Cavern of Fossil Bones, - - 383 



Zoology 24. A new species of Buceros, ... i^. 



Botany — 25. Circulation of the Sap in the Chara vulgaris. 26. A new plant 

 which supplies limpid and wholesome water. 27. Botanical acquisitions in 

 our New Indian Territories, - \ - - . 383 — 384 



XXXVI II. Celestial Phenomena, from October l«t, 1827, to .January 1st, 

 1828, ...... 384 



XXXIX. Summary of Meteorological Observations made at Kendal in June, 

 July, and August 1827. By Mr Samuel Marshall, 386 



XL. Register of the Barometer, Thermometer, and Rain-Gage, kept at Ca- 

 naan Cottage. By Alex. Adie, Esq. F. R. S. Edinburgh, 392 



NOTICES TO CORRESPONDENTS. 

 We shall be much obliged to Dr Hart man for the continuation of his valua- 

 ble notices. 



The Rev. W. Whewell's valuable paper " on the principles of Dynamics, 

 particularly as given by French Writers," will appear in next number. 



Professor Oersted's MSS. on Thermo-electricity has reached us safely, and in 

 good time. 



We have received Professor Muncke of Heidelberg's observations on the 15th 

 January. It would give us great pleasure to hear again from him. 



Mr Marshall's Paper on the Cause of the North East Winds in Spring has 

 been unavoidably postponed till next number. 



We have received Professor Schweigger's last Packet, and shall attend to it 



a's Memoir on the Horary Oscillations of the Barometer at Rome was too late 

 for this number, but will appear in our next. A proof will be forwarded to any 

 address he may send. 



In reply to the letter of A Mechanic, we beg to inform him that the prices of 

 a Patent are, 



For England, - ^ - - L. 105 



For Scotland, - - . . . 75 



For Ireland, - . - - 120 



For the Colonies, - - - - 10 



L.310 

 Tliis is exclusive of the specification, the cxpence of which depends upon its length, 

 and the number of drawings. We would not advise our Correspondent to ruin him- 

 self by such a summary process as that of taking a patent, while the present Patent 

 Laws remain unrepealed, and a blot upon the Statute-Book. 



We have already noticed the blunder pointed out by our Correspondent, and com- 

 mitted in Baron Ferussac's Bulletin dcs Sciences Nat. torn. v. p. 53, where the author 

 has given from this Journal, vol. ii. p. 97, an account of the discovery of a Mine 

 of Mohjhdotna in Invcrness-shire, in place of a Mine of Black Lead. 



