12 SCIENTIFIC CATALOGUE. 



Langdon.— THE APPLICATION OF ELECTRICITY TO 

 RAILWAY WORKING. By W. E. Langdon, Member of the 

 Society of Telegraph Engineers. With numerous Illustrations. 

 Extra fcap. 8vo. 4s-. dd. 



Lockyer (J. N.)— ^Vcrks by J. Norman Lockyer, F.R.S.— 

 ELEMENTARY LESSONS IN ASTRONOMY. With nu- 

 merous Illustrations. New Edition. i8mo. ^s. 6d. 

 " The book is full, clear, sound, and worthy of attention, not only as 

 a popular exposition, but as a scientific ^ Index.'" — Athenaeum. 

 "The tnost fascinating of elementary hooks on the Sciences." — 

 Nonconformist. 

 THE SPECTROSCOPE AND ITS APPLICATIONS. By J. 

 Norman Lockyer, F.R.S. With Coloured Plate and numerous 

 Illustrations. Second Edition. Crown 8vo. 3^. 6d. 

 CONTRIBUTIONS TO SOLAR PHYSICS. By J. Norman 

 Lockyer, F.R.S. I. A Popular Account of Inquiries into the 

 Physical Constitution of the Sun, with especial reference to Recent 

 Spectroscopic Researches. II. Communications to the Royal 

 Society of London and the French Academy of Sciences, with 

 Notes. Illustrated by 7 Coloured Lithographic Plates and 175 

 Woodcuts. Royal Svo. cloth, extra gilt, price 31^. 6d. 

 " The first part of the work, presenting the reader with a continuous 

 sketch of the history of the various inquiries into the physical con- 

 stitution of the sun, cannot fail to be of interest to all who care for 

 the rez'elations of modern science ; atid the interest will be enhanced 

 by the excellence of the numerous illustrations by which it is accom- 

 panied.'" — Athenseum. " The book may be taken as an authentic 

 exposition of the present state of science in connection with the im- 

 portant subject of spectroscopic analysis. . . . Even the ujtscientific 

 public may da-ive much information from it." — Daily News. 



Lockyer and Seabroke. — STAR-GAZiNG : PAST AND 



PRESENT. An Introduction to Instrumental Astronomy. By 

 J. N. Lockyer, F.R.S. Expanded from Shorthand Notes of 

 a Course of Royal Institution Lectures with the assistance of 

 G. M. Seabroke, F. R.A.S: With numerous Illustrations. 

 Royal Svo. 2IJ. 

 Lubbock. — Works by Sir John Lubbock, M.P., F.R.S. , D.C.L, : 

 THE ORIGIN AND METAMORPHOSES OF INSECTS. 

 With Numerous Illustrations. Second Edition. Crown Svo. 3^. dd. 

 "As a sufnmary of the phenomena of insect tnetamorphoses his little 

 book is of great value, and will be read with interest and profit 

 by all students of natural history. The whole chapter on the 

 origin of insects is most interesting and valuable. The illustra- 

 tions are numerous and good." — Westminster Review. 

 ON BRITISH WILD FLOWERS CONSIDERED IN RELA- 

 TION TO INSECTS. With Numerous Illustrations. Second 

 Edition. Crown Svo. 4f. dd. 



