May I, 1879] 



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MONTHLY JOURNAL OF SCIENCE 



AND ANNALS OF 



BIOLOGY, ASTRONOMY, GEOLOGY, INDUSTRIAL ARTS, 

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Edited by WILLIAM CROOKES., F.R.S. 



Now ready, No. LXV., May. 1879. 

 Price ONE SHILLING and SIXPENCE. 

 Contents : — 

 I.— The Spiritual in Animals. 

 IL — Ancient Glacier Action in the Punjab. By Major H, A. Tracy. 

 III. — A Plan for Establishing Life -saving and Signal Stations in Mid- 

 ocean. By Isaac P. Noyes. 

 IV, -An Honest Cashier. 

 V. — Upium-smoking among the Celestials. By Rich. V. Mattison. 

 Ph.G., M.D. 

 VI, — Is Organic Variation Fortuitous? 

 VII. — The Science of Agriculture. 

 , VIII. —The Pressure of Fired Gupowder. 



Notices of Books— Proceedings of Societies — Correspondence — 

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NORTH BRITISH AGRICULTURIST, 



Is the only Agricultural Journal in Scotland, and circulates extensively 

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THE TELEGRAPHIC JOURNAL 



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ELECTRICAL REVIEW 



For April 15th. 1879, contains: — 

 Leader : The Society of Telegraph Engineers. 



M. Ader's Teleph -ne without a Diaphragm. By M. le Comte du Moncel. 

 Prof, Hughes 'n Induction. 



Oppenhcuner's Lightn.ng Guard Insulator. (Illustrated ) 

 A New Form of Shut.t Box. By J. Rymer-Jones. (Illustrated.) 

 Ediv)n's New Electric Lamp. 

 Fuller's Electric Light. (Illustrated.) 

 Induction Apparatus for Reversed Currenu. By Professors EUhu Tho«. 



son and Edwin J. Houstun. (Illustrated.) 

 Clerac's Tube. By Prof. Thomas A. Edison. 

 Notes. 



New Patents — 1879. 

 Proceedings of S«ieties. 

 General Science : — 



I' KuKincs for Working Electric Light Machines." (lUuitnUed.) 

 ' Mechanical Production of Speech." 

 Otr Notes. 



London: HAUGHTON ft CO.» 10, Patemotter Row. 



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THE ENTOMOLOGIST: 



AN ILLUSTRATED JOURNAL OF BRITISH ENTOMOLOGY. 

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THE CHAMBER OF 

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