12 TRANSACTIONS OF THE [FEB. 23, 
all the species. For the date of publication the work is one of 
high merit and may yet be consulted with much profit. 
In 1829 appeared an exceedingly important work on North 
American mammals, namely, the first volume of Richardson’s 
“*Fauna Boreali-Americana,” a quarto of 300 pages and 24 
plates, on the mammals of British North America. It is still a 
standard work, and is the chief source of information on the 
habits and distribution of the mammals of the region north of 
the United States. 
Among later important works of a general or faunal character 
may be mentioned Emmons’ “‘ Report on the Quadrupeds of 
Massachusetts,” published in 1840; and DeKay’s ‘* Report on the 
Mammals of the State of New York,” a quarto volume with 
thirty-three colored plates, published in 1842. This work in- 
cludes references to all of the then known species of North 
American mammals, and served for many years as a general refer- 
ence work, though it failed to take very high rank as an author- 
ity. Linsley’s list of the mammals of Connecticut * was published 
in 1842 ; Thompson published a valuable fully annotated list of 
the mammals of Vermont’ in 1853; and Kennicott published 
an important paper on the mammals of Illinois in 1857.* 
The great work of Audubon and Bachman, entitled ‘‘ The 
Viviparous Quadrupeds of North America,” published in three 
volumes, royal octavo, 1846-54, with colored plates, marks a 
new era in North American mammalogy. About 200 species 
are described and 160 figured. The work, however, does not 
include either the bats or the marine species. It is devoted 
especially to the life histories of the mammals, and deals only to 
a limited extent with technical matters. Strange as it may 
seem, this forms the latest general work on North American 
mammals which treats of the subject from its popular or non- 
technical side, although one or two later works treat certain 
groups from a general standpoint, dealing with both the popular 
and the systematic phases of the subject. Audubon drew most 
of the platesof the great work with which his name is associated, 
and jointly with Bachman contributed largely to the text; but the 
strictly systematic portion is well known to be the work of Bach- 
man, the father of systematic mammalogy in America, and, prior 
to Baird, the leading authority on thesubject. His monographie 
revision of the genera Sorex, Scalops, Sciwrus, and Lepus, form- 
1 American Journal of Science and Arts, XLIIT., 1842, pp. 345-354. 
? Natural History of Vermont, 1453, Mammals, pp. 23-56, and App. 
pp. 11-20. 
* Report Commissioner of Patents, Agriculture, 1856, pp. 52-110, pll. 
V.-X1V, . 
