SCIENCE-ADVERTISEMENTS 



Fuel, Solid, Liquid, and Gaseous 



BY J. S. S. BIIAME, F.C.S., Instructor in Chemistry, Royal Naval College, Greenwich, Lecturer 



on Fuel, Sir John Cass Technical Institute, Aldgate. With 73 Figures and 55 Tables. 8vo. Pp. 



XTi+372. $3.50 net (Weight, 34 oz.) 



Endeavor has been made in this book to place before the technical man, who is not a fuel special- 

 ist, but who requires a good general knowledge of the subject, as full information on all fuels of im- 

 portance as space permits : at the same time the soientilio principles underlying gas producer practice, 

 combustion, etc., have not been neglected. The application of fuels to other purposes has not been 

 overlooked, but primarily fuels are considered in their relation to power. As far as possible the dia- 

 grams have been chosen to illustrate principles and typical forms of plant and apparatus. 



The Riddle of Mars, the "Planet 



By C. E. HOUSDEN, Member British Astronomical Association. With 5 Plates (3 Colored). 



8vo. SI. 20 net (Weight, 12 oz.) 



An endeavor is made to solve the riddle of Mars (of what is possibly happening there) from quite 

 a new direction. The result will, it is hoped, help towards the universal acceptance of the artificial 

 nature of Mara' canals and oases, and all that this implies. 



/iDonograpbs o\i Btocbemistr? 



Edited by E. H. A. PLIMMER, D.So., and F. G. HOPKINS, F.E.S., D.So. 

 Nucleic Acids. Their Chemical Properties and Physiological Conduct. 



By WALTER JONES, Ph.D., Professor of Physiological Chemistry, Johns Hopkins Medical 

 School, Baltimore, Md. Royal 8vo. Pp. viii-f-118. $1.10 net (Weight, 14 oz.) 



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