BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, 



22 ALBEMARLE STREET, LOKDON, W. 



The next ANNUAL GENERAL MEETING will be held at YORK, 

 commencing on WEDNESDAY, August 31. 



President-Elect, 



SIR JOHN LUBBOCK, Bart., M.P., D.C.L., LL.D., F.R.S., F.L.S., F.G.S. 



Notice to Contributors of Memoirs. — Authors are reminded that, under an 

 arrangement dating from 1871, the acceptance of Memoirs, and the days on which 

 they are to be read, are now, as far as possible, determined by Organizing Commit- 

 tees for the several Sections before the beginning of the Meeting. It has therefore 

 become necessary, in order to give an opportunity to the Committees of doing 

 justice to the several Communications, that each Author should prepare before- 

 hand an Abstract of his Memoir, of a length suitable for insertion in the pub- 

 lished Transactions of the Association, and the Council request that he will send 

 it, together with the original Memoir, by book-post, on or before August 1, 

 addressed thus : — " General Secretaries, British Association, 22 Albemarle Street, 



London, W. For Section " Authors who comply with this request, 



and whose Papers are accepted, will be furnished before the Meeting with printed 

 copies of their Reports or Abstracts. If it should be inconvenient to the Author 

 that his Paper should be read oh any particular days, he is requested to send 

 information thereof to the Secretaries in a separate note. 



G. GRIFFITH, Acting Secretary, 



Harrow, Middlesex. 



New Edition, price Is. 



TABLE OF CORRECTIONS FOR TEMPERATURE 



to Reduce Observations to 32° Fahrenheit for Barometers, with Brass Scales 

 extending from the Cistern to the top of the Mercurial Column. 



By JAMES GLAISHER, F.R.S. 

 Taylor and Francis, Red Lion Court, Fleet Street, E.C. 



THE LONDON, EDINBURGH, AND DUBLIN 



Philosophical Magazine and Journal of Science. 



A Journal devoted to Physics, Astronomy, Mechanics, Chemistry, Mineralogy, 

 and the Allied Sciences. Monthly, price 2s. 6d. 

 Complete sets (in Numbers) may be obtained at the following prices : — 

 A set of the First Series, from 1798 to 1826 (wanting a few plates), in 68 

 volumes. Price ^15. 



The Second Series, from 1827 to 1832, in 11 volumes. Price £2 4s. 

 The Third Series, in 37 volumes, from 1832 to 1850. „ £6. 



Taylor and Francis, Red Lion Court, Fleet Street, E.C. 



The Annals and Magazine of Natural History. 



Including Zoology, Botany, and Geology. — Monthly, price 2s. 6d. 



Complete sets (in Numbers) may be obtained at the following prices :— 



The First Series, in 20 volumes, from 1838 to 1847. Price ,€10. 



The Second Series, in 20 volumes, from 1848 to 1857. „ ^10. 



The Third Series, in 20 volumes, from 1858 to 1867. „ £12. 



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[ADVERTISEMENTS continued on 3rd page of Cover 



