RE VIE VUZS 2/19 
found a man better fitted than Professor Harris to take charge of the 
study of Louisiana geology. ‘The problems of the stratigraphy of the 
state can be attacked successfully only by a careful study of the fossils. 
The promptness with which the report has been published is one of its 
many virtues. The work was begun in November 1898, and Professor 
Harris’ letter of transmission is dated November 1899. Such prompt- 
ness, however, sometimes has its disadvantages. It is doubtless respon- 
sible for several important typographical errors, for the awkward 
title-page that gives neither date nor place of publication, and for the 
unfinished condition in which the maps appear. Perhaps it is just as 
well that the geological map accompanying the report is credited to 
no one, for to no one is it a credit. With the exception of the maps 
the volume is well printed and tastefully bound; and the defects we 
may find in the mechanical part of the work are very small matters 
compared with the valuable contributions to science contained in the 
report. 
Joun C. BRANNER. 
On the Lower Silurian (Trenton) Fauna of Baffin Land. By 
CHARTES SCHUCHERD, Proce Unis) Nata viuse Vol) XOCy pp: 
143-177, plates XII-XIV. 
Any addition to our knowledge of the fossil faunas of the arctic 
regions is received with special satisfaction by those who are interested 
in the broader problems of palzontology, in which the facts of geo- 
graphic distribution are of special moment. The present paper by Mr. 
Schuchert is one of the most important of such contributions to be 
found in our literature. It is devoted to the description and discussion 
of more complete collections of fossils from Sillman’s Fossil Mount 
at the head of Frobisher Bay, than have previously been secured from 
that locality. Seventy species of fossils are recorded, eighteen being 
described as new. ‘The fauna shows strong affinities with the Trenton 
fauna of the United States, especially with the fauna of that age as it is 
known,in Minnesota, a large proportion of the species being common 
to the two regions. 
The Trenton fauna has been recognized at various localities in the 
arctic regions, the strata containing it always resting unconformably 
upon the old crystalline rocks. No other Ordovician fauna has been 
recognized in the whole region save at one locality, on Frobisher Bay, 
