PROF. W. TURNER ON THE PLACENTATION OF THE LEMURS. 
587 
Addendum. — July 15 th, 1876. 
A few days ago the Library of the University of Edinburgh received the recently 
published parts of the great work ‘ Histoire physique, naturelle et politique de Mada- 
gascar,’ publiee par Alfred Grandidier, Paris, Imprimerie Nationale, 1875. The parts 
published are vol. ix. tome iv. atlas 1, and vol. vi. tome i. texte 1, premiere partie, in 
which the description and illustration of the Natural History of the Mammals of 
Madagascar is commenced by MM. Alphonse Milne-Edwards and Alfred Grandidier. 
From a note in the ‘ Comptes Rendus’ of 20th December, 1875, p. 1280, which I did 
not see until after this Memoir had been communicated to the Royal Society, it would 
appear that these volumes were published at the close of last year. 
The volume of text contains a description of the osteology and myology of the family 
Indrisince of the order of Lemurs. The volume of the atlas contains 122 beautiful 
lithographic and photographic plates in illustration of the external form and colour 
and the internal anatomy of this family of Lemurs. Plates 113 to 121 inclusive are 
devoted to figures of the gravid uterus and its contents in Propitliecus diadema, 
Edwardsii, and Verreauxii, Avahis laniger, and Indris brevicaudatus ; but no description 
of these figures has been published either with the atlas or in the volume of text. The 
generally villous surface of the chorion is shown in these figures, and in Propithecus 
diadema smooth spots are scattered amidst the villi ; but no similar spots are represented 
on the chorion of the other species, though P. Edwardsii , P. Verreauxii , and apparently 
Indris brevicaudatus have a smooth chorion opposite the os uteri. In none of the figures 
is the presence of a rudimentary horn to the chorion extending into the non-fecundated 
uterine cornu represented. In P. diadema and I. brevicaudatus the uterine mucosa is 
seen to be raised into minute folds, and in P. diadema the presence of depressed smooth 
areas on the mucosa is shown. Beyond figuring a capillary plexus in the foetal villi and 
uterine mucous membrane, no representation of the minute structure of the placenta 
has been given, and no notice is taken of the uterine glands and of their relations to the 
depressed areas in the mucosa. The illustrations, therefore, are incomplete in some 
interesting and important particulars. The amnion, allantois, and a small pedunculated 
sac, which looks like the umbilical vesicle, are, however, beautifully figured. 
