388 The American Geologist. j U ne, i89i 
Thierreiches," he will find that the five summit plates of Haploerimis are 
invariably regarded as orals. But this is not all. Although Messrs. 
Wachsmuth and Springer could not accept this view in 1886, they found 
reasons for changing their opinions two years later. In the Proceed- 
ings of the Academy of Natural Sciences of Philadelphia, for 1888, 
they published a paper entitled "Discovery of the ventral structure of 
Taxocrinus and Haplocrinus, and consequent modifications in the classi- 
fication of theCrinoidea." Mr. Miller is evidently not acquainted with 
the contents of this important paper. For on page 350 the authors say, 
" We must admit the weight of the evidence is in favor of the supposi- 
tion that the plates covering the ventral surface in Haplocrinus and 
Aallagecrlnus are orals." Mr. Miller, however, seems to have remained 
in total ignorance of the fact that Wachsmuth and Springer had 
written anything fresh upon the subject of Haplocrinus since 1886 ; 
while certain passages in his definitions of the families Ichthyocrinidaa,. 
Taxocrinidae, and Platycrinidse, show him to be equally unacquainted, 
with the recent discoveries of his fellow country men, though they 
were published nearly two years before he wrote, and have a most im- 
portant bearing on the systematic arrangement of the Crinoidea, as 
indeed is implied in the title of the paper in question. The result is 
that he has produced a classification of the group, of which it is 
scarcely too much to say that, like his use of the term "subradials," it 
was out of date before it was published. 
P. Herbert Carpenter. 
Eton College, Windsor, England, April 20, 1891. 
A Correction. By an error in my paper on Lake Superior Stratigraphy, 
the word "younger" appears instead of "older" in the eighth line 
from the bottom on page 322 of the American Geologist for May,. 
1891. Andrew C. Lawson. 
Berkeley, May 8th. 
PERSONAL AND SCIENTIFIC NEWS. 
Dr. Hans Reusch has recently found, on the north side of 
the Varanger fiord in northeastern Norway, glacial striae and a 
formation which was originally boulder-clay or till, belonging to a 
period much older than the Ice age of the Quaternary era. The 
series of sandstones and conglomerates presenting these proofs of 
former glaciation are regarded by Dahll as Permian, but Dr. 
Reusch thinks that they may be a part of the Cambro-Silurian 
system which chiefly makes up the Scandinavian mountains. The 
paper contains excellent photographic illustrations of striated 
rock fragments from the conglomerates, and of the striae and 
grooves on the underlying sandstone. There were two courses of 
glacial movement, the principal one being towards the southeast,. 
