Personal and Scientific News. 359 
as Mr. Walcott informs, that also this rather unusual name is likewise 
already preoccupied. In place of it he recently proposed the name 
Zacantlioides, as the name Olenoides, which is applied by hitn in Bulletin 
30 of the U. S. Geol. Survey for what I named Embolimus s;>inosus, is not 
tenable, on comparing that form witJi the type form of Olenoides. The 
second species of Embolimus (rotundatus) Mr. "Walcott places under the 
newly created genus Bathyuriscus, which according to his statements has 
eight thoracic segments, while all the numerous specimens of this form, 
collected at Mt. Stephen, invariably have nine thoracic segments; never- 
theless on comparing bis figures with tlie specimens from the before men- 
tioned locality, I do not doubt their specific identity and his right to claim 
priority in description of the species, as most likely only a mistake in 
counting the segments caused the apparent difference. 
The form associated by me with Ogygia, under the name 0. serraia is 
claimed by Walcott to be a typical representative of Meek's species Par- 
adoxides nevadensis afterward changed into Olenoides nevadensis; but the 
figure of the type specimen- given by Walcott represents so imperfect a 
specimen, that an accurate identification with the well preserved specimens 
of Mt. Stephen is scarcely possible. A certain similaritj'- exists undc-ubt- 
edly, but we are told eight or more thoracic segments are the normal 
number for the genus Olenoides, while all the numerous specimens from 
Mt. Stephen have but seven, never more. 
With regard to the other fossils, partly only mentioned by me, wdthou 
description or figu'-es, Mr. Walcott identifies the specimen figured as 
Agnostus with A. interstrictus White, of what I compared with Menoce- 
phalus salteri he thinks it might possibly be a young individual of Bathyu- 
riscus howelli the correctness of which suggestion I am inclined to dispute, 
although I do not insist on the correctness of my comparison with Meno- 
cephalus. 
Also Mr. Walcott's inference, that the remains supposed by me to begrap- 
tolites, might be slender specimens of Ilyolithellus is erroneous. In order 
to give him an opportunity to form on all the concerned objects an inde- 
pendent opinion of his own he is welcome for the loan of all the specimens 
concerned if he should wish so. 
PERSONAL AND SCIENTIFIC NEWS 
The papers read before Section E at the late meeting of 
the Am. Assc. Adv. Sci. at Cleveland, were as follows: 
The geological history of the Ozark uplift. By G. C. Broadhead. 
The Archimedes limestones and associated rocks in north-western Ar- 
kansas. By F. W. Simonds. 
Systematic results of a field study of the Archtean rocks of the Northwest. 
By Alexander Winchell. 
The use of fossils in determining the age of geologic terranes. By 
Kenry S. Williams. 
The terraces of the Missouri. By J. E. Todd. 
Extra morainic stri;u in the Missouri valley. By J. p]. Todd. 
Boundary of the glaciated area in Dakota. By G. F. Wright. 
