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rAMICS. By 



;e, Cambridge, 

 Belfast. 8vo. 



■MATICAL 



iridge Course. 

 College, some 

 irer in Mathe- 



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dynamics of ^ 

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PHYSICAL SCIENCE. 



^Jhusmakl^ \ Airy (G. B.)— POPULAR ASTRONOMY. With Illustrations. 



By G. B. Airy, Astronomer Royal. Seventh and cheaper Edition. 

 l8mo. cloth, \s. 6d, 



This work consists of Six Lectures, which are intended ''to explain 

 to intelligent persons the principles on which the instruments of an 

 Observatory are constructed (omitting all details, so far as they are ■ 

 merely stchsidiary)^ and the principles on which the observations 

 made with these instrufnents are treated for deduction of the distances 

 and weights of the bodies of the Solar System^ and of a few stars, 

 omitting all minuti(2 of formula, and all troublesome details of 

 calculation,^^ The speciality of this vohmie is the direct reference op 

 every step to the Observatory, and the full description of the methods 

 and instruments of observation. 



r f 



Bastian (H. C. M.D., F.R.S.)— THE MODES OF 



ORIGIN OF LOWEST ORGANISMS : Including a Discussion 

 of the Experiments of M, Pasteur, and a reply to some Statements 

 by Professors Huxley and TyndalL By H. Charlton Bastian, ^ 

 M.D., F.R.S., Professor of Pathological Anatomy in University 

 College, London, etc. Crown 8vo. 45". 6d. 



The present volujue contains afrag?nent of the evidence which will be 

 embodied in a much larger wo^'k — ncnv almost completed — relating to 

 the natu7'e and origin of living matter, and in favour of what is 

 termed the Physical Doctrine of Life. ''It is a work worthy of the 

 highest respect, and places its attthor in the very first class of scientific 



physicians. 



difficult 



power 



more happily applied to the investigation of a complex biological 

 proble?n.^^ — British Medical Journal, 



D 2 



