164 Scientific Intelligence. 



of what becomes of the zygospores. He finds that they remain 



a considerable time uncha i vide into a numbe 



zoospores, which soon con;. i, lt0 new plants a 



common tlh) "" tterit apf 

 thawi 



The most _, mo U s f, • on-tned by Dodel is that those micro- 

 grow at once into new plants just as in t! 



zoospores. In other words, the sexual process is reduced to the 

 ; lnvrt . IUIJ<> " "» two bodies so similar that it is impossible to dis- 



one as male and the other as female, and 

 these bodies, if not placed in conditions favorable for c>„ 

 can at once grow mto now plants. It would be diffiee 

 «-xual.ty..l a I. over grade than this, u here each sexual organ is 

 also capable of reproducing the plant l. v non-sexual growth. We 

 would recall tl t , , /, , ,, 



Bary, where, of the several male organs (pollinodia) only one suc- 

 c ':' e!l ; w '' 'nnng m contact with the female organ, vet' 



the formation of the sac which eventually encloses the 'pores. 

 With very rare exceptions in the Thallogcns, t!te male organ at 

 once atrophies after iertilization has been accomplished. 



2. De Copul.ith.ne, Mirozoosporarum Enter ■omorph'," com- 



} _> II Seripsit J. E. \p, s II ,, ev 1, ttlllsl , Xoliser. 

 1 ' . X " ''■~ In Htl1 <>b MMtions stir qmlp.s dgu - l e- 



i:; " observations of \, .. maintained 



that the microzoospores of Enteromorpha compressa conjugated. 

 1,1 thr l'«;>t-nt paper Areschoug gives a detailed account of 

 repeated observations of the conjugation of microzoospores of 

 Enteromorpha compressa made during the past summer, and it 

 •ear that Janczewski an ...„ too hasty 



' ' 



zygospores m /fn,,,,/,,. ■■>,, /■„■„#,■;* , /> 



existence of which Rostafinski denied was 



3. Profess.,,- Sir W,j,We Thorns,,,, on some of the Echino- 

 Oerms of the « /Ve,/ y ,/„,/< ,>,„/ •■ 7/o« S .— One 

 ot the recent numbers of the Transactions of the Royal Society 

 of London contains an account by Professor Thomson of the 



1> - M - . I m >t iut t , p , , , -, I 



' "! r Hl *' V ' " nr H -"»- <-t - v* i U v'o ' the 



with flexible test, intermediate between the 





111,1 I>iadetnatid;i', the g. 



t "Paise- 



Echinothur ^^ , gir 



throws a good deal of . , „ f th / exti , 



