Annales des Sciences Naturelles. 487 
laya. A translation from the Journal of the Asiatic Society of Bengal 
RUSCONI sur les changemens que les oeufs des Poissons ejyrouvant avant qu'ils 
aient pris la forme d'embryon. A translation from the Bibliotheca Italiana, and 
already noticed in our analysis of the Archives of Muller Note additionnelle 
au memoire de M. DUVERNOY sur quelques particularity du systeme sanguin ab- 
dominal et du canal alimentaire de plusieurs Poissons cartilagineux. Analyse 
des travaux anatomiques, physiologiques et zoologiques, prestntes a I' Academic des 
Sciences pendant le mois de Mai 1836 : viz., MARION DE PROCES sur I'Orang .- 
BASSI sur la Muscardine, a disease of the silk-worm, produced by the vegetation 
of a species of fungus (Botrytis Bassiana) which germinates in the living cater- 
pillar, and invariably proves fatal in its developement : BLAINVILLE sur les em- 
preintes trouvees dans le gres bigarre : JACQUEMIN sur Vanatomie des Oiseaux : 
BOURGERY et BEGIN sur la structure des poumons : Observations sur les Fausses- 
Galles par M. VALLOT. 
The June Number contains only one original paper, viz Memoire sur la vie 
intra-branchiale des petites Anodontes, par M. A. DE QUATREFAGES, who traces, 
with minute and scrupulous care, the changes which the ova undergo, from the 
period of their entrance into the branchiae, until the young Anodontes are en- 
tirely separated from their parent. It has been long a disputed question, by what 
passage the ova, on their issuing from the ovary, got access to the branchiae, for 
no anatomist was able to discover any ducts or pores indisputably appropriate to 
such a purpose ; and no wonder, since M. De Quatrefages appears to have as- 
certained that the ova are first expelled from the body through the anal tube, 
and again sucked in by the stream of water which flows in between the branchial 
lamellae for the purpose of respiration. This stream deposits them in the folds 
of the external lamellae, which are the first to receive the water. Here the ova 
insinuate themselves (it is not mentioned how) into the loculce or cells of these 
organs, which are loaded with them disposed in regular series, while very few, 
or more commonly none at all, are to be found in the internal branchial lamellae, 
or in the cloak. A moderately sized Anodon will lay, it is calculated, rather 
more than 14000 ova, and a larger individual not less than 20000. They are ex- 
pelled at intervals of half and three-quarters of an hour in small clusters, and the 
process of ovi position may last for twenty -four hours at least Without trans- 
lating the author, who is unusually concise, it would be impossible to communi- 
cate to our readers a correct idea of the changes which the ova experience in their 
developement, and which are carefully described and delineated, as these were 
observed from day to day ; but the omission at present is less to be regretted, 
for we shall probably give a translation of the paper in a future number. We 
can now only remark, that the embryo young appear to remain about 125 days 
in the branchiae when the mother delivers herself of her numerous progeny. 
The delivery occupies four or five days The rest of the number is filled with 
a, translation of Mr OWEN'S paper on the Entozoa, from the Transactions of the 
Zoological Society ; and of a paper, by Messrs FALCONER and CANTLEY, on a 
new genus of fossil ruminant from the Himalaya mountains, named Sivatherium 
giganteum. The original will be found in the Journal of the Asiatic Society of 
Bengal In the analysis of the proceedings of the " Academic des Sciences 
pendant le mois deJuin 1836," there is a letter from M. D. NERVAUX, in which 
he says he had seen a pair of Nightingales (Rossignolj remove their eggs from 
the nest vi hen this was threatened to be inundated, and that the eggs, placed in 
