TO CORRESPONDENTS. 



Communications have been received from W. S. MacLeay, Esq., R. Hamilton", 

 Esq., the Rev. L. Jenyns, J. E. Gray, Esq., G. Gardner, Esq., Dr. Griesbach, 

 Dr. G. W. Arnott, and T. Paine, Esq. 



Want of room compels us to leave over for next month various notices re- 

 flecting new works. For the same reason we have been obliged to delay the in- 

 sertion of the Proceedings of some Societies. 



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. 79, for JULY, 1838. 



1. Education in Civil Engineering and Mining in the University of Durham. 



2. On Primary and Secondary Rainbows. By Mr. Potter. 



.3. Meteorological Observations in Bermuda. By Lieut.-Col. Emmett, R.E. 



4. Researches on the Nature and Properties of Albumen. By Dr. Golding Bird. 



5. Composition of Mineral Substances of Organic Origin. By Prof. Johnston. 



6. On the separation of Oxalic from Organic acids. By Prof. Johnston. 



7. Of the Reaction of the Essential Oils with Sulphurous Acid as evolved in 

 union with iEther in the process of jErification, or otherwise. By Prof. R. Hare, 

 of Pennsylvania. 



8. On a Scale of Geometrical Equivalents for Engineering and other purposes. 

 By M. HoltzapfTel. 



9. On the Primary Forces of Electricity. By Richard Laming, Esq. 



10. On some of the Phenomena and Laws of Action of Voltaic Electricity, 

 and on the Construction of Voltaic Batteries. By Christopher Binks. 



Miscellaneous Articles, Foreign Intelligence, Proceedings of Learned Societies, 

 and Meteorological Observations. 



With this is published the SUPPLEMENT Number, completing Vol. XII. 

 Among other articles will be found those of Prof. Forbes's Researches on Heat, 

 Second Series; and Prof. Johnston's on the Composition of certain Mineral Sub- 

 stances of Organic Origin, No. IV. ; together with the Proceedings of the Geolo- 

 gical, Zoological and Meteorological Societies, Intelligence and Miscellaneous 

 Articles, and the Title-page, Index, &c. 



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



THE ANALYST. 



Just published, price 4s., No. XXIV. of 



THE ANALYST, a Quarterly Journal of Science, Literature, 

 Natural History, and the Fine Arts. 



Edited by EDWARD MAMMATT, Esq., F.G.S., &c. 



CONTENTS. 



I. Divi Botanici ; or Sketches of Distinguished Botanists. 



II. Essay on the Manners of the Romans. 



III. Popular View of the Geology of Derbyshire. 



IV. Sketches of European Ornithology. 



V. History of Ancient French Literature. 

 VI. Remarks on the Preservation of Timber. 

 VII. Notes on the Nature of Insanity. 

 VIII. Cwm Bychan, a Legendary Tale. 



IX. Observations on the Genus Cytherea of Lamarck. 

 X. Remarks on Music and Musical Performances. 

 Proposal for a Decimal Arrangement of the Currency. — Transactions 

 of the Geological, Zoological, and Ornithological Societies of 

 London. — Proceedings of the Birmingham Philosophical Insti- 

 tution. — Critical Notices of New Books. — Outlines of Periodical 

 Literature. — Meteorological Observations. 



London : Simpkin and Marshall. 



