SCIENCE. 



[Vol. XVIII. No. 457 



CALENDAR OF SOCIETIES. 



Biological Society, Washington. 



Oct. 31.— Theodore Gill, The Classifica- 

 tion of the Tetraodontoidea; T. H. Bean, 

 Some Pishes New to New England Waters; 

 Walter B. Barrows, Cuckoo Stomachs and 

 their Contents; N. H. Egleston, The Tem- 

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 Parasites; Development of Echinorhynchus 

 gigas. 



Columbus Horticultural Society, Colum- 

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Oct. 31.— P. M. Webster, Parasitic In- 

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 E. E. Bogue, Autumn Colorations. 



MO-DARf IMSM AND MO-LAMARCKISI. 



By LESTEi^ F. WARD. 



AoDual address of the President of the Biological 

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 ism, Neo-Lamarckism, the American "School."''' Ap- 

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 are expressed they are in the main Jn lino with the 

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 to the extreme doctrine of the non-transmissibility 

 of acquired characters. 



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