MESSRS CHURCHILL'S WORKS xv 



Lake Price 



A MANUAL OF PHOTOGRAPHIC MANIPULATION. 

 By LAKE PRICE. Second Edition, Revised and Enlarged, with numerous 



Engravings Crown 8vo, 6s. 6d. 



%* Amongst the Contents are the Practical Treatment of Portraits Groups in the 

 Studio Landscapes Groups in Open Air Instantaneous Pictures Animals Architec- 

 ture Marine Subjects Still Life Copying of Pictures, Prints, Drawings, Manuscripts, 

 Interiors Stereoscopy in Microphotography, &c., and Notices of the last Inventions 

 and Improvements in Lenses, Apparatus, &c. 



" In these days, when nearly every intel- 

 ligent person can, after a few weeks, master 

 the manipulatory details of our art-science, 

 attention to the artistic treatment of sub- 

 jects is a matter for the serious considera- 



desire to enter on this path, Mr. LAKE 

 PRICE, in the volume before us, proves 

 himself to be 'a guide, philosopher, and 

 friend.' " The British Journal of Photo- 

 graphy. 



tion of the Photographer ; and to those who 



o 



C. Brooke 



THE ELEMENTS OF NATURAL PHILOSOPHY. By 

 CHARLES BROOKE, M.B., M.A., F.R.S. Based on th,e Work of the late 

 Dr. GOLDING BIRD. Sixth Edition, with 700 Engravings on Wood. 



[Fcap 8vo, las. 6d- 



CONTENTS 



I, Elementary Laws and Properties of Matter : Internal or Molecular Forces 

 2, Properties of Masses of Matter : External Forces 3, Statics 4, The Mechanical 

 Powers, or Simple Machines 5, Principles of Mechanism 6, Dynamics 7, Hydro- 

 statics 8, Hydrodynamics 9, Pneumatics 10, Acoustics II, Magnetism; Diamag- 

 netisin 12, Franklinic Electricity 13, Voltaic Electricity 14, Electro- Dynamics 

 15, Electro-Telegraphy 16, Thermo- Electricity -17, Organic Electricity 18, Catop- 

 trics and Dioptrics 19, Chromatics 20, Optical Instruments 21, Polarised Light 

 22, Chemical Action of Light : Photography 23, Thermics 24, Radiant Heat. 







G. P. Rodivell 



NOTES ON NATURAL PHILOSOPHY. 



By G. F. RODWELL, F.R.A.S., Lecturer on Natural Philosophy in Guy's 

 Hospital, Science Master in Marlborough College. With 48 Wood Engrav- 

 ings ..... Crown 8vo, 55. 



" As an introductory text-book for this 

 Examination [the Preliminary Scientific 

 (M.B.) of the University of London], it is 

 quite the best one we have seen . . The 

 Notes ' chiefly consist of lucid and con- 

 cise definitions, and every where bristle with 



the derivations of scientific terms." 

 Nature. 



"A well-arranged and carefully-written 

 condensation ot the leading facts and prin- 

 ciples of the chief elements of Natural 

 Philosophy." Chemical 



P. Kohlrausch 



AN INTRODUCTION TO PHYSICAL MEASUREMENTS, 



With Appendices on Absolute Electrical Measurement, etc. By Dr. F. 

 KOHLRAUSCH. Translated from the Second German Edition by T. H. 

 WALLER, B.A., B. Sc., and H. R. PROCTER, F.C S. With Engravings. 



[8VO, I2S. 



