92 REVIEWS 
await justification. Doubtless changes will be required at no very 
distant time, for the Lepospondyli, at least, as stated, are in a very 
unsatisfactory condition; but the present urgent need here as elsewhere 
among the ancient vertebrates is more facts, not more new theories. 
Among the Reptilia, also treated by Broili, only one new order is 
admitted, the Parasuchia, concerning which there is now a unanimity 
of opinion; nor have additional suborders been admitted, perhaps 
unwisely, save the Chelonidea among the turtles. The union of the 
cotylosaur reptiles in the same order with the theriodonts seems ultra- 
conservative, and yet the reviewer must admit that there seems to be 
no broad line of demarcation in the series between the two extremes. 
The writer does not agree with Broili in his disposition of Lysorophus 
among the lizards, nor of Placodus and Mesosaurus among the Saurop- 
terygia. 
The treatment of the birds, by Schlosser, is essentially that of the 
Eastman edition, with minor changes. 
Especially welcome is the part devoted to the mammals, including 
nearly half of the work. Dr. Schlosser’s reputation as a mammalologist 
is deservedly high, and his views will have much authoritative value. 
The recent works by Osborn and Gregory are of the greatest value, but 
nothing can take the place of such a compendium as the present one, with 
its precise definitions and systematic arrangement. One is interested to 
observe that, in place of the twenty-eight orders of Osborn, Schlosser 
follows the usual classification of the placental mammals into the Insec- 
tivora, Rodentia, Chiroptera, Carnivora, Cetacea, Edentata, Ungulata, 
and Primates, while the Sirenia, Proboscidea, and Hyracoidea are 
grouped with the Embrithopoda under the order Subungulata, of 
African origin; and the chief groups of South American origin, the 
Typotheria, Toxodontia, Entelonchyia, Astrapoth eroidea, and Pyro- 
theria are included under the order Notungulata. He classes the 
Monotremata and Marsupialia under the Eplacentalia. The Multi- 
tuberculata, including even the disputed 7ritylodon, are classed.as mar- 
supials, against which Dr. Broom and the present writer have protested. 
One can scarcely conceive of the possibility of the immediate evolution 
of reptiles into marsupial mammals in face of the oviparous mammals 
existing today. Notwithstanding the evidences afforded by Ptilodus 
the writer, as a herpetologist, firmly believes that the early multituber- 
culate mammals were oviparous, with all the essentially primitive 
characters possessed by the living monotremes in the pectoral girdle, 
genital apparatus, etc. 
