468 Bibliographical Notice. 
ditions and methods of fossilization of the hard parts of plants and 
animals ; also on the ‘“ geological record” and the use of fossils to 
the Geologist. 
1. Of the Protozoa, the Rhizopoda are here mainly represented by 
the Foraminifera. As with the other groups, a short account of the 
general structure and features precedes that of the subgroups. A 
careful note on Hozodn is given at page 21, and the Radiolaria are 
also referred to. 
2. Of the Porifera, the notes on the several orders and their distri- 
bution are concise and clear. 
3. Of the Coelenterata, the Hydrozoa are interesting as comprising 
the Graptolites, and, with the Actinozoa, are treated, both as to 
structure and distribution, as fully as limits permit. 
4, The Echinodermata, including Asteroids, Ophiuroids, Echinoids, 
Crinoids, Cystids, and Blastoids, have their structure, relationships, 
and distribution represented to the student in succinct but useful 
notes, such as he would gladly have in his notebook when studying 
the indicated fossils. 
5. Of the Vermes very few fossil representatives are here noted. 
The annelidan jaws found in paleozoic (and mesozoic) strata are 
alluded to. 
6. The Polyzoa and Brachiopoda of the Molluscoidea receive their 
proportionate share of attention. 
7. The Mollusca (Lamellibranchs, Gasteropods, Scaphopods, and 
Cephalopods) have necessarily most attention, being the most nume- 
rous and commonly useful kinds of fossils. The bathymetrical 
distribution of the recent groups and the distribution in time of the 
fossil forms are indicated with some precision; but space did not 
admit of the modern divisions and subdivisions of the Ammonoid 
and other Cephalopods. 
8. The very extensive subkingdom of the Arthropoda or Articu- 
lata, though evidently appreciated, are provided with very limited 
accommodation in this little book. The TVrilobita (one of the 
“oroups of doubtful position ”) are more fully enumerated than the 
others, of which few genera are taken as types for the student. 
‘A list of some important palwontological works” is given as an 
appendix, a few “general,” and others special for each group of 
Invertebrata, but necessarily, though numerous, far from all that a 
real student would have to use. The Index of group-names and 
genera will be found useful as far as it goes. 
In the text are fifty-six illustrations, especially of the structure 
of the organisms, showing the names of parts concerned; but very 
few generic forms are figured, the learner being supposed to have 
recourse to a collection of the fossils themselves. 
We object to the propagandism of the vicious style of nomen- 
clature here affected—for instance, one of the oldest and best-known 
specific names given by Linné is printed here as Rotalia ‘‘ beccart,” 
instead of the authorized Beccarii; the latter being the genitive of 
the only Latinized form that Dr. Giacomo Bartolomeo Bxccarr’s 
