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IN 



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ARLC0-UREA5E is a dry, soluble Powder, active and standardized, 

 prepared after Van Slyke's method and containing the urea-splitting 

 enzyme of the soy bean. 



Samples and literature on request. 



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ISIS 



■WONDELGEM, (BELGIUM) 



Objects : 1° To study the evolution of hnman thought, chiefly of scientific thought, taking into 

 account all influences which life in common brings constantly into play. We think indeed 

 that the history of science — that is to say, the history of human thought and olvilization in this 

 highest form — is the rational basis of all really scientific philosophy. 



2° To study the means of accelerating civilization by increasing the intellectual ontput 

 of humanity, and by obtaining the more rapid record, olaesifioation, diSusion and assimilation 

 of knowledge acquired, in a word : to organize science. 



A quarterly review published in French, English, German, Italian ; French being however 

 predominant. 



Volume I (1913-1914) 826 p. gr. 8°, 2 portraits: 30 francs, half veUiun: 33 francs 

 Volume n and following. (400-500 p.) : 15 francs, half vellum 18 francs 

 Edition de luxe HoUande v. Gelder: 18.50 francs, half vellum 21.50 francs. 



{The ist number of Vol. II basjast appeared) 



L'ENCYCLOPEDIE SUR FICHES 



Bibliographical notes reprinted from Isis, one side of paper only, forming an encyclopaedia on cards, 

 relative to the highest realms of thought. 



A collection of from 1000 to 1500 notes = 5 francs. (Each subscriber to Isis has the right to buy one 

 coll. at 1.50 francs.) 



A specimen copy will be sent on application (accompanied by two international stamps) to 

 ISIS, Wondelgem, Belgium 



