Erratum in Vol. XI. 

 P. 414, for E. H. Nichols read E. L. Nichols. 



Errata in No 78 (January 1882.) 



Page 45, end of art. 45, for +e 2 read — e 2 



3 3 



— 46, art. 50, line 6, end of numerator, for — read jj- J 



2« 

 \ z+x 3 F(B) 

 — 46,' art. 52, line 5, for (13) read (14), 



46, art. 52, line 4, for (13) read /(D) 2 3+x 3 F(D) 2 z=0 



(14) 



Now ready, Price 6<7., post-free 7d, 



TAYLOR'S CALENDAR OF MEETINGS 



OF 



THE SCIENTIFIC BODIES OF LONDON 

 FOR 1881-82. 



Tayxor and Francis, Ked Lion Court, Fleet Street, E.C. 



New Edition, price Is. 

 TABLE OF CORRECTIONS FOR TEMPERATURE 



to Reduce Ohservations 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. 



TAYLOR'S SCIENTIFIC MEMOIRS. 



Part 6, containing the following important papers — M. Melloni on the 

 Polarization of Heat, C. F. Gauss on the General Theory of Terrestrial Mag- 

 netism, W. Weber on the Bifilar Magnetometer, Dr. Schleiden on Phyto- 

 genesis, having heen reprinted, a few complete Sets are now on sale, price £6 10s. 



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 iSeries, from 1798 to 1826 (wanting a few plates), in 68 

 volumes. Price ,€15. 



The Second Series, from 1827 to 1832, in 1 1 volumes. Price £2 As. 

 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. 



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



[ADVERTISEMENTS continued on 3rd page of Cover. 



