176 
BIBLIOGRAPHY. 
r Monthly Microscopical 
L Journal, Sept. 1, 1869. 
were either colourless or of a dull yellowisli tint. As regarded a 
distinctive scale on the males, there was not a doubt that in many 
families the males possessed scales of a peculiar type, known as the 
" battledore " or " tasselled " scale ; further researches might reveal 
other types. It could very safely be laid down that no female pos- 
sessed a battledore or tasselled scale, hence wherever found they were 
indicative of sex. Several other points were advanced, and the life- 
history of different moths and butterflies described. The paper was 
illustrated by a collection of insects in the several stages, and by 
microscopic preparations. 
It was resolved that a letter of invitation from the Society to the 
British Association, requesting the honour of a visit to Brighton, be 
forwarded through Mr. Mayall, who had consented to represent the 
Society at Exeter. 
BIBLIOGKAPHY. 
Etude sur I'Anatomie comparee de I'encephale des poissons ; par 
M. le docteur Baudelot, Professeur de Zoologie a la faculte des 
Sciences de Strasbourg. Strasbourg. Silbermann. 
Note sur I'Anatomie des deux especes du genre PericJioeta et essai 
de classification des annelides lumbricines ; par M. Leon Vaillant. 
4to, 31pp. Montpelier. Boehm et fils. 
Zur Entwickelungs-geschichte de Siphonophoren. Beobachtungen 
iieber die Entwickelungs-geschichte der Genera : Physophora, Crystal- 
lodes, Athorybia ; und Eeflexionen iieber die Entwickelungs-geschichte 
der Siphonophoren im AUgemeinen von Dr. Ernst Haeckel. Utrecht. 
Vander Post. 
Handbuch der Lehre von den Geweben des Menschen und der 
Thiere. Herausgegeben von Herrn S. Strieker. 2 Lieferung. Leip- 
zig. Engelmann. 
Bulletin de I'Academie Imperiale de St-Petersbourg. T. xiv. 
Leipzig. Yoss. 
IJeber Bliitentwicklung bei den Compositen von Herrn Em 
Koehne. Berlin. Enslin. 
Zur Anatomic von Prurigo von Dr. R. H. Derby. Wien. Gerold's 
Sohn. 
Bericht iieber die wissenschaftlichen Leistungen in der Natur- 
geschichte der niederen Thiere wahrend der Jahre 1866 und 1867, 
von Prof. Rudolph Leuckart. Berlin. Nicolai. 
Vorlaufige Notez iieber den Ursprung und die Vermehrung der 
Bacterien von Dr. A. Polotebnow. Wien. Gerold's Sohn. 
