210 The American Geologist. March, iso; 
iilar countries or disti-icts; and yet others pertain to tiie lit- 
erature of si)ecial geological subjects. Witli reference to tiiese 
various limitations of scope the entries have been given an 
elaborate classilication, and they are also indexed, so that one 
who wishes to know what has been written on a particular 
subject or a particular district can readily ascertain whether 
there is a known list of the writings he seeks. 
Our readers may recall that the committee on bibliography 
was appointed at the Washington session of the Congress and 
that it made a preliminary report at the Zurich session. Funds 
for the publication of this volume were furnished by the local 
committees of those Congresses, but the cost of printing has 
somewhat exceeded the estimates, and the committee are en- 
deavoring to meet the deficit bj^ selling such copies of the cat- 
alogue as remain after supplying the members of the two 
Congresses. Not only do we hope that this may be accom- 
plished, but that a large number of our university and public 
libraries may acquire this valuable work of reference, for it 
will be found a great convenience wherever any original re- 
search is undertaken in general geology, or in any of its de- 
partments. The price, for the United States and Canada, has 
been fixed at $5.00, and copies can be had from the American 
member of the committee, Mr. G. K. Gilbert, of theU. S. Geo- 
logical Survey, Washington, D. C. n. h. w. 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
Sixteenth Annual Report of tlte United Staten Geological Survey to 
the Secretary of the Interior, 1894- U'). Charles D. Walcott, Direc- 
tor. — Part I. Director's Report and Papers of a Theoretic Nature: pp. 
xxii, 910: with 117 plates, and 168 ficrures in the text: 1896. -Part II. 
Papers of an Economic Character: pp. xix, 598: with 42 plates, and 65 
iigures in the text: 1895. — Part III. Mineral Resources of the United 
States, 1894, Metallic Products: pp. xv, 646, with 23 plates, and 9 fig-- 
ures in the text; 1895. — Part IV. Mineral Resources, 1894, Nonmetallic 
Products: pp. xix, 735, with 6 plates; 1895. Four stately volumes 
constitute this annual report. The ihii'd and fourth treat of the jjro- 
gress and statistics of mining and quarrying in this country during the 
calendar year 1894, as compiled under the direction of Dr. David T. 
Day, which reports previousl^^ have been issued in a separate series. 
These volumes, and also the second, which contains results of inve.sti- 
