Kecentiy pubiished, m »vo, price bs. 



MUSICAL INTERVALS AND TEMPERAMENT. 



An Elementary Treatise on. With an Account of an Enharmonic Harmonium 

 exhibited in the Loan Collection of Scientific Instruments, South Kensington, 

 1876. Also of an Enharmonic Organ exhibited to the Musical Association of 

 London, May 1875. 



By R. H. M. BOSANQUET, 

 Fellow of St. John's College, Oxford. 



Macmillan and Co., London. 



Just published, in crown 8vo, price 10s. Qd., cloth. 

 A TREATISE ON STATICS, 



Containing some of the Fundamental Propositions in Electrostatics. 



By GEORGE M. MINCIilN, M.A., 



Senior Moderator in Mathematics and Natural Philosophy, 



Trinity College, Dublin ; 



Professor of Applied Mathematics in the Royal Indian Engineering College, 



Cooper's Hill. 

 London: Longmans and Co. 



THE GEOLOGICAL RECORD. 



The First Volume of this yearly publication has been issued. It describes or 

 notices works on Geology, Mineralogy, and Palaeontology published during the 

 year 1874, and contains upwards of 400 pages. 



Copies can be had of Messrs. Taylor and Francis, Red Lion Court, Fleet Street, 

 London. Price Fifteen Shillings. 



The Second Volume, describing works published in 1875, is in hand, and will 

 be published shortly at the price of 10s. Gd. to Subscribers and of 16s. after 

 publication. 



Subscribers' names and remittances should be sent to the publishers, Messrs. 

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



In the press, for private circulation. 

 TABLES FOR THE REDUCTION, TO ZERO CENTIGRADE, OF THE 

 BAROMETER, 



Or a Pressure Column with a Glass Scale graduated to Millimetres j together 

 with Tables for the Reduction of Pressure to Thousandths and Millipnths of an 

 Atmosphere. 



By WARREN DE LA RUE, M.A., D.C.L., F.R.S. 



Applications for a copy to be addressed to Messrs. Taylob and Fhancis, Red 

 Lion Court, Fleet Street, E.C. 



THE LONDON, EDmBURGH, 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) ma}- be obtained at the following prices : — 

 A set of the First Series, from 1798 to 1826 (wanting a few plates), in 63 

 volumes. Price ,^15. 



The Second Series, from 1827 to 1832, in 1 1 volumes. Price £2 4s. 

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



Price 2s. 6d., post free 3s. 

 THE UNIVERSITY COLLEGE CALENDAR. 



The CALENDAR for 1876-77, containing the Bye-laws, Regulations, Me- 

 morials, List of Students, Exhibitioners, &c., together with much useful infor- 

 mation respecting the College and School. 



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



[ADVURTISmiENTS continued on 3rd page of Cover. 



