16 BOOKS PUBLISHED BY DAVID DOUGLAS. 



SMYTH— Life and "Work at the Great Pyramid. 

 With a Discussion of the Facts ascertained. By C. Piazzi 

 Smyth, F.R.SS.L. and E,, Astronomer-Iloyal for Scotland. 

 3 vols, demy 8vo, 56s. 



SMYTH— An Equal-Surface Projection for Maps of 

 the World, and its Ap]ilication to certain Anthropological 

 Questions. By C. Piazzi S>nTH, F.R.SS.L. andE., Astronomer- 

 Royal for Scotland. 8vo, 3s, 



SOUTHESK— Britain's Art Paradise ; or, Notes on 

 some Pictures in the Royal Academy, 1871. By the Earl of 

 SouTHESK. 8vo, sewed, Is. 



SOUTHESK — Saskatchewan and the Rocky 



Mountains. Diary and Narrative of Travel, Sport, and Adven- 

 ture, during a Journey through part of the Hudson's Bay 

 Company's Territories, in 1859 and 1860. By the Earl of 

 SouTHESK. K.T., F.R.G.S. 1 vol. demy 8vo, with Illustrations 

 on Wood by Whimper, 18s. 



SOUTHESK— Herminius. 



A Romance. By I. E. S. Fcap. 8vo, 6s. 



SPENS— The Sanitary System of Scotland : its 

 Defects and Pro])osed Remedies. By Walter Cook Spens, 

 one of the Sheriflf-Substitutea of Lanarkshire. Demy 8vo, 6s. 



STRACHAN-"What is Play ? 



A Physiological Inciuiry. Its bearing upon Education and 

 Training. By John Straciian, M.D., Jun. In 1 vol. fcap., Is. 



TAIT— Sketch of Thermodynamics. 



By P. C. Tait, M.A., I'rofcssor of Natural Philosophy in the 

 University of Edinburgh. Second edition, Revised and Ex- 

 tended. Cr. 8vo, 53. 



WILSON- Reminiscences of Old Edinburgh. 



By Daniel Wil.son, LL.D., F.R.S.E., Professor of History and 

 English Literature in University College, Toronto, Author of 

 " Prehistoric Annals of Scotland," etc. etc. 2 vols, post 8vo. 



