136 The American Geologist. March, 1902 
to consideration that up to this time little was known of the 
geology of the province which had long been famous for the 
value of its mineral deposits. 
After the publication of this work he found time not only 
to rewrite portions of Lethaea Palaeozoica, to which reference 
has already been made, but to prepare numerous smaller con- 
tributions treating of his investigations and studies among 
which may be found the first observations upon the discovery 
of diluvial mammals in the low plain of northern Germany, es- 
pecially in Silesia and Poland. So great was his interest in 
this direction that later he undertook an investigation of the 
Polish bone caves concerning which he published, in 1883, a 
large work bearing the title “Die Knochenhdlen von Ojcow 
in Poland” (Palaeontographica, 29). This was translated 
into English by John Edward Lee, under the title “The Bone | 
Caves of Ojcow in Poland’, and published the following year 
in London. 
As further evidence of Roemer’s great activity it may be 
remarked that he had already prepared and published (1880) 
a description of the Carboniferous limestone fauna of the 
west coast of Sumatra—‘Uber eine Kohlenkalk fauna der 
Westkiiste von Sumatra” (Paleontographica 27)—based up- 
on a fine collection sent him in 1876 by Verbeek. 
In 1885 appeared Lethaea erratica (Palacont. Abhandlg. 
von Dames u. Keyser, Bd. II. 5. Berlin) embracing an enum- 
eration and description of the boulders occuring in the North 
German plain. Among his papers published in 1887 is the 
description of a fossil crustacean from the Shoal Creek region 
near Austin entitled “Graptocarcinus Texanus, eine Brachyure 
aus der oberen Kreide von Texas” with an illustration (N. 
Jahrb. f. Min. etc., 1887, Bd. I. 173). The next year he pub- 
lished the description of “‘Macraster, eine neue Spatangoiden- 
Gattung aus der Kreide von Texas” (N. Jahrb. f. Min., ete., 
1888, Bd. I. 191) represented by M. Texanus from George- 
town. The same year he also published “Uber eine durch 
die Haufigkeit Hippuriten-artiger Chamiden ausgezeichnete 
Fauna der oberturonen Kreide yon Texas.” (Paleontol. Abh. 
Bd. IV. 3, Plates). The fauna here considered is from Bar- 
ton’s creek, a well-known locality a short distance southwest 
of Austin. Of the twenty-one species described he regarded 
