426 NATURAL SCIENCE. June. 1894. 



goes ; but it was felt that it would be equally undesirable to entirely 

 pass over all theoretical speculations. Without some connecting idea, 

 the facts themselves lose much of their interest, and biologists must 

 of necessity pay close attention to such work as Weismann's, even if 

 they have to find subsequently that some new discovery renders that 

 work no longer tenable as affording an adequate explanation of the 

 facts as they stand. Though to some minds Weismann's doctrines 

 may extend into the regions of transcendental science, yet his works, 

 and those of the Hertwigs, Boveri, and other eminent cytologists, have 

 brought home to all an immense and varied field of possible research, 

 the results of which may in the future, as they have done in the past, 

 profoundly modify the position of Biological Science. 



OUTLINE BIBLIOGRAPHY. 



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Bd. 22, 1888, Bd. 24, 1890. 



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M. D. Hill. 



