39 
conceptions, et chacune ne se trompe qu’en voulant faire disparaitre 
V’aautre. 
J’ai cru devoir, en raison de l’importance des questions soulevées, 
ajouter ces quelques pages aux opinions de BEARD; et, peut-étre bien 
les aurai-je trop modifiées 4 son gré. Il n’est pourtant pas possible 
que les phénoménes soient compris de la méme facon par tous, ils com- 
portent encore trop d’indétermination pour cela. 
Paris, 3. Décembre 1896. 
P. S. Apres avoir lu le nouveau et important travail de Brarp 
— On certain Problems of Vertebrate Embryology. Jena, Gustav 
Fischer, 1896 — il me semble bien que mon idée, bien que suggérée 
par la sienne, finit par en différer tout ä fait. C’est une raison de 
plus pour l’exposer. 
Nachdruck verboten. 
On the Morphology and Physiology of the Suprarenal Capsules 
in Fishes. 
By Swate Vincent, M. B. Lond. etc., 
Demonstrator of Physiology and Assistant Lecturer on Histology 
Mason College, Birmingham. 
A paper on the interrenal body of Elasmobranchs and on Sran- 
nus’ bodies of Teleosts!) has just (Sat. Nov. 7th 1896) fallen into my 
hands, and as I have a somewhat extensive memoir at present in 
the press ?), the ground of which is partly covered by the paper just 
alluded to, I take this opportunity of stating that I have had no pre- 
vious knowledge of the Author’s work. This is perhaps particularly 
necessary, as the conclusions he has reached are, so far as they go, 
almost exactly in accord with my own. At the end of DiAamAre’s 
paper is inscribed the date, October 1895. This I presume is the 
1) Vincenzo Dramsre, “Ricerche intorno all’ organo interrenale degli 
Elasmobranchi ed ai corpuscoli di Srannivs dei Teleostei”. Estratto dalle 
Memorie della Societa Italiana delle scienze, (detta dei XL) Serie III Tomo X, 
Roma 1896. — DramareE appears to have written a preliminary communi- 
cations on this subject “I corpuscoli surrenali di Srannrus ed i corpi del 
cavo abdominale dei teleostei. Notizie anatomiche e morfologiche”. Bollet, 
Soc. Naturalisti in Napoli, Vol. IX, Anno IX, p. 10—24, 1895 (marzo), 
This paper I have not seen. 
2) Trans. Zool. Soc., Vol. XIV, Part III, No. 1. (In the Press.) 
