TO CORRESPONDENTS. 



Communications have been received from Capt. Du Cane, R.N. ; the 

 Rev. L. Jenyns ; Dr. Johnston ; Charles C. Babington ; Thos. Tay- 

 lor, Esq., and Robert Patterson, Esq. 



ERRATUM. 

 An error in the names affixed to two notices in our last Number, p. 142, re- 

 quires correction to prevent confusion. For the first, on Car ex rupestris, we are 

 indebted to Mr. Churchill Babington ; — and for the second, upon the Hare and 

 the Alpine Swift, to our old correspondent Mr. Charles C. Babington, F.L.S. 



Page 139, line 11 from bottom, omit the ivords "in conjunction with Prof. Miiller." 



THE LATE MR. JOHN HUNNEMAN. 



NOTICE.— The Representatives of the late Mr. J. HUNNEMAN 

 have disposed of the Goodwill of his entire Business to Mr. W. PAMPLIN, 

 jun., of Lavender Hill, Wandsworth, Bookseller; and now also of No. 9, Queen 

 Street, Soho Square ; and it is solicited both by Mr. H.'s Representatives and his 

 Successor, that he, W. P., jun., may be employed as the London Agent of the late 

 Mr. H.'s correspondents. 



W. P., jun. pledges himself to attend with the utmost care and punctuality to 

 the interest and commands of those who may honour him with a portion of that 

 confidence which has been so long and so deservedly placed in the late Mr. Hnn- 

 neman by his numerous correspondents. 



The Foreign Book and Agency business is carried on precisely as before, and 

 upon the same premises, viz. No. 9, Queen Street, Soho Square, London. 



H. HUNNEMAN, Administratrix. 

 W. PAMPLIN, jun., Successor to the Business. 

 London, April 1, 1839. 



THE LONDON AND EDINBURGH 

 PHILOSOPHICAL MAGAZINE, AND JOURNAL OF SCIENCE; 



CONDUCTED BY 



SIR DAVID BREWSTER, F.R.S., RICHARD TAYLOR, F.L.S., 

 AND RICHARD PHILLIPS, F.R.S. 



Contents of No. 90 for MAY 1839. 



Researches in the Undulatory Theory of Light. By J. Tovey, Esq. 



On some Products obtained by the reaction of Nitric Acid on Alcohol. By Dr. 

 Golding Bird. 



Answer to the Objections published against a general theory of the Visual Ap- 

 pearances which arise from the Contemplation of Coloured Objects. By J. Plateau, 

 Professor at the University of Ghent. 



On the Constitution of Resins. By J. F. Johnston, F.R.S. 



On the Theory of Astronomical Refractions. By J. Ivory, K.H., M.A., F.R.S. 



On the Geology of Devonshire. By Prof. Phillips. 



On the Devonian System. By the Rev. Prof. Sedgwick and R. I. Murchison. 



On the Classification of certain Geological Formations in Devonshire. By the 

 Rev. Dr. Williams, F.R.S. 



Proceedings of Learned Societies, Miscellaneous Articles, Meteorological Ob- 

 servations and Table. 



R. and J. E. Taylor, Red Lion Court, Fleet Street. 



