18709. | Recent Literature. 445 
the taller specimens derive no adventitious support from this 
source 
copious appendix at the end of the volume, which, by the 
way, is neatly illustrated, embodies, together with much other 
matter, valuable notes on the flora of Morocco and the Canaries, 
together with meteorological and geological information in a con- 
densed form. . We take pleasure in commending the work to our 
readers, feeling sure that it will meet with their approval. 
W. W.B, 
THE SERIES oF ANIMAL Forms IN GEOLOGICAL TimE.\—In this 
work Prof. Gaudry brings together from his stores of palzon- 
tological knowledge the evidences of serial relation in time pre- 
sented by various groups of Mammalia. Following in the steps of 
Kowalevsky (Palzontographica, 1873) and Cope (Journal Phila- 
delphia Academy Sciences, 1874), he takes up the history of each 
portion of the skeleton separately, and although he does not 
exhaust the subject, he treats it more fully than either of the 
authors named. The volume is divided in correspondence to 
the orders of Manaialia. and in each division the characters of 
the skull and skeleton, of the feet and of the teeth are taken up 
alean e does not appear to have been ac ere with 
the aech of. Cope on these animals published in 1875? in 
which it was shown that they cannot be referred with any proba- 
bility to the marsupials. Under the head of Pachydermata an 
interesting discussion of the origin of the present dental type of 
the Rhinoceride is found, that part relating to the outer crests of 
the molars being apparently new. The portion relating to Paleo- 
therium and Lophiodon is especially useful. Prof. Gaudry treats 
the Améblypoda lightly, the principal expositions of the characters 
of the order by American palzontologists not having probably 
come into his hands at the time of et his book. The dis- 
cussion of the teeth and feet of Ruminantia is especially full, and 
good figures of the parts of several genera little apg in Amer- 
ica are given. One of the best chapters is that on the Carnivora, 
where the gradations in the dental iaa o of the genera 
are clearly shown. The extinct Quadrumana of Europe are 
very well illustrated, including the genera of Mesodonta, found in 
Sel ce. The author admits ge speprstion of Filhol, that the 
“Ppresentent, comme les Adapis, des passages entre les 
idinurieie et les ean HA ” (p. 230); a position which we- 
Les Enchainements du Monde Animal dans les Temps Gevlesraner Mammifers 
Tertiaires. Par ALBERT GAupRY. Paris, Savy, 1878. 
* Proceedings Academy of Natural Sciences, Philadelphia, December. 
