467 



Od peut se demauder si les deux phases de la secretion du lait 

 ont uue destiöation propre? 



II me parait certain que la phase uecrobiotique ne reconnait pas 

 pour mission essentielle la mise en liberte de la graisse, puisque celle- 

 ci est constamraent excrötee par les cellules grace ä un processus 

 m6rocrine. Je suis plutot dispose ä admettre que la phase necro- 

 biotique, qui assure I'expulsion dans la lumiere alveolaire de fragments 

 cytoplasmiques et nucl6aires, a pour but de fournir au lait une partie 

 de ses constituants quaternaires. 



Les noyaux qui degenerent de diverses fagons au cours de lac- 

 tation se remplacent par amitose. Ce phenoraene n'est pas un pro- 

 cessus degeneratif au sens propre du mot; il doit etre envisage comme 

 la manifestation principale de la participation des noyaux au pro- 

 cessus s6cr6toire. L'amitose, en etfet, n'est jamais suivie de division 

 du corps cellulaire et si les cellules dont les noyaux subissent cette 

 division ne meurent pas imm6diatement, elles n'ont plus aucun avenir 

 en dehors de la s6cr6tion du lait et sont fatalement vouees a la re- 

 gression des que la lactation cesse. 



Nachdruck verboten. 



A Xote on the Persistence of Trade Impressions. 



By Richard John Anderson, Galway. 



The transmission of acquired characters has not been regarded 

 as proved by many morphologists. The difficulties are greatly in- 

 creased in the investigation of human peculiarities owing to fact that 

 imitation is a potential or actual factor to be reckoned with even in 

 the very young, and this power which man has in common with birds 

 and possesses alone of all mammals makes it difficult to distinguish 

 hereditary from educational characters. 



Featural characters and expressions of pose are amongst those 

 which have greatly misled observers. The numerous statements made 

 in this regard are now familiar to most people. 



It is also pretty generally admitted that the case with which a 

 member of a trade family which has for generations pursued the same 

 calling learns the craft may be due to an early implanted taste, as 

 well as, to hereditary proclivities. 



If, however, the featural characters or pose be present in one who 

 has never been educated up to a certain trade, one must look for the 

 explanation amongst hereditary tendencies or elsewhere. Darwin ex- 

 plains the drawing up of the shoulders by the Trapezius as distinctly 



30* 



