DISCOVERY 



123 



Two books by Silvanus Thompson deal with his re- 

 ligious faith. The Quest for Truth appeared in 1915, and 

 A Xot Impossible Religion posthumously in 1918. His 

 forbears were Quakers, and he remained a Friend all his 

 life. 



A. S. R. 



Can K-e Set the World in Order ? By C. R. Enock, C.E. 

 (Grant Richards. 1916, 3s. 6d. net.) 

 Mr. C. R. Enock, a traveller of wide experience and a 

 well-known wxiter on South America and other tropical 

 lands, has written a most thoughtful and stimulating 

 volume which should be studied by everyone interested 

 in the problems of home and imperial administration. He 

 makes an appeal to the constructive sense of man to see 

 economic problems in their wider bearings, the anti- 

 thesis of the opportunist policy of the time. Mr. Enock 

 sees the world in a state of chaos, but believes that it is 

 possible to reach conditions of reasonable economic 

 equilibrium, in which the needs of the individual and the 

 community are established in permanent security. Pro- 

 -iress so far has been too exclusively measured in terms 

 I natural wealth and pleasure. The result is that the 

 ;iatural resources of the world have been ruthlessly ex- 

 ploited in the race for wealth. This is not only economi- 

 cally unsound, but is not conducive in the long-run to the 

 well-being of all classes and all races. The book must be 

 read for a full understanding of the closely reasoned argu- 

 ment, which is copiously illustrated from the author's 

 wide experience. Briefly, he presses for the need of a 

 science of corporate life which must be constructive rather 

 than observatorj'. Economics are too academic to get 

 into real touch with realities, and geography, although far 

 more practical, is too deeply imbued with commercialism. 

 Mr. Enock looks to a development of the science of human 

 geography on constructive lines — in other words, the grasp 

 and application of its principles — as a guide to the states- 

 man and administrator. R. N. R. B. 



The Quantitative Method in Biology. By Prof. Julius 

 MACLEOD (University of Ghent). (Manchester 

 University Press, 15s. net.) 

 In a volume suggesting the school of De Vries' Mutations 

 theory, the writer emphasises the great natural capacity 

 of plant-forms for variation due to inherent plasticity, 

 the remarkable changes in many forms under cultivation, 

 according to him, being merely the expression of this 

 natural property, more in some than in others, and thus 

 revealed for the first time. The difference between one 

 species and another is conceived on a purely chemical 

 basis, and is to be estimated on quantitative lines by 

 precise measurement of the range of so-called primordia. 

 The latter term, usually used in botany in an entirely 

 different sense, is perhaps unfortunate ; it merely expresses 

 what is loosely known as a factor, and the organism is 

 viewed as a collection or combination of factors. In 

 Spirogyra, for example, such functions as the length and 

 breadth of a cell-unit are " primordia." The importance 

 of getting adequate data by measurement for every 

 individual factor of an organism, or for a series of allied 



[Coiltiniud on p. 1Z4 



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