436 THE AMERICAN NATURALIST. [Vor. XXXIV. 
ZOÓLOGY. 
A New Practical Zoülogy.'— A new elementary text-book of 
practical zoólogy on the lines already made familiar by Huxley and 
Martin's E/ementary Biology has been published under the joint 
authorship of the late T. J. Parker and W. N. Parker. The student 
finds an introduction to the principles of zoólogy through a study of 
the frog, which occupies somewhat more than a third of the volume. 
Then follow chapters on the amceba, hamatococcus, infusorians, 
hydra, earthworm, crayfish, fresh-water mussel, amphioxus, dogfish, 
and rabbit. Many of these chapters include discussions of general 
zoological problems especially well illustrated by the particular 
animal under consideration; thus, under Infusoria, biogenesis and 
abiogenesis are discussed, and under Hydra and its allies, alternation 
of generations. "The book is concluded with a chapter on the struc- 
ture of the cell and its róle in development, as illustrated by verte- 
brate embryology. There are numerous good illustrations, and the 
practical directions are such asare of real value. The volume forms 
an important contribution to the list of laboratory text-books. P. 
Gogorza's List of the Vertebrate Animals of the Philippines. 
In the Annals of the Natural History Society of Madrid for 1888, 
José Gogorza y Gonzalez gives under the title of “Datos para la 
Fauna Filipina,” a list of the vertebrate animals known from these 
islands. The list is based largely on the collections in the museum 
at Madrid, the collections of numerous Spanish engineers and explor- 
ers, notably Francisco Martinez, Carlos de Mazarredo, José Pérez 
Maeso, Domingo Sánchez, and Regino Garcia. 
Thirty-five species of mammals are recorded: 156 of birds, 87 of 
reptiles, ro of amphibians, and 292 of fishes. No new species are 
described in any group. The nomenclature of the fishes is not very 
modern, being apparently based solely on Giinther’s Catalogue of the 
Fishes of the British Museum. There is, however, evidence that the 
work has been conscientiously performed. All the species mentioned 
are ascribed to a definite locality, a fact which indicates that the 
paper is not at all a compilation, and that the collection on which it 
is based is a very rich one, though doubtless not including more than 
a third of the fishes actually visiting these islands. Ds 
1 Parker, T. J., and Parker, W. N. An Elementary Course of Practical Zöol- 
ogy. xii + 608 pp., 156 illustrations. New York, The Macmillan Company, 1900. 
