December iS, 1879] NA TURE 



In Eighteen Monthly Parts. Price, 40 cents each. Subscription for the whole work, paid in advance, $6. 



THE APPLICATIONS OF PHYSICAL FORCES. 



AMEDEE GUILLEMIN. 



Translated prom the French by 



:m::r,s. isrotti&j^iiT XjOC^-ytt r. 



and Notes, by 



J. NORMAN LOCKYER. 



With Four Coloured Plates and nearly Five Hundred Engravings. 



The issue of Guillemin's " Forces of Nature " in monthly parts being now complete, the publishers propose to follow it up by a 

 similar issue of the companion work on " The Applications of Physical Forces. This important and valuable treatise, which gives in 

 popular form explanations of the various modes in which the " Forces " with which readers of the previous volume are now familiar, may 

 be applied to human use, will now therefore be brought for the first time within the reach of a public to whom in its original and costly 

 form it was inaccessible. The mere mention of a few of the subjects dealt with in the work is enough to show its eminent I 

 supply the ever-increasing thirst for scientific information : e.g. The Pendulum, the Balance, Hydraulic Press, Artesian Wells, Pumps, 

 Pi' • Engines, Air Pumps and Guns, lialhons, the Stethoscope, Belts. Drums. Stringed Instruments, Wind Instruments, the Organ, Mirrors, 

 Lighthouses, the Microscope, the Telescope, the Stereoscope, Photography, Heliography, itus, the Steam Engine, Steam 



Navigation, the Locomotive, the Compass, Lightning Conductors, Eleetrie Telegraphy, and other applications of Electricity. 



MACMILLAN & CO., 22 Bond Street, NEW YORK. 



IsTO^AT TAE^JD^T. 



BRITISH BARROWS: 



A RKCORD OK THE EXAMINATION Ol 



■" Sepulchral Mounds 



IN VARIOUS 



ZB1T ■WIXjXjI.A.IML: GKT^ZEjEZlST XATZEXjIL,. 



TOGETHER WITH D . Ol- FIGURES 01 I EMARKS ON PREHISTORIC 



CRANIA. AND AX APPI XDIX, 



By GEORGE ROLLESTON, M.D., F.R.S., 



Linacrc Profess Fellow of Merton College : 



With Illustrations. Svi 8 



prehistoric inhabitants of Europe are now exciting an interest in the minds of thoughtful men which, twenty years ago, would 

 md which can -no long ii Man in Great Britain is raj': 



.I and scientifii 



known in the North ; and among en instrumental in brih 



logical record of Great Britain, and that it contains a larger mi erved tacts than any book hitherto pub- 



lished relating to the Bronze age in this country."— \\ 



MACMILLAN & CO 22 Bono Street. NEW VORK 



