a ooo Spientifie News. [March, 
Hatrer’s MAcgRATING FLUID! (central nervous system of ma- 
tine Rhipidoglossa).— 
ycerine . J ES parts. 
y Glacial acetic acid....,..... 58 
SOR WN a hl bo awn ds cyan ox ao 04 nen twye’ 3 a0 0504 0H 20°. 
This fluid causes no shrinkage, and accomplishes its work in 
one-half to three-quarters of an hour. 
[Ole 
SCIENTIFIC NEWS. 
à PRINCETON, Feb. 16, 1886. 
PROFESSOR E. D. Cope, EDITOR AMERICAN NATURALIST. 
Dear Sir:—In the February number of the NATURALIST you 
say with regard to Professor Marsh’s Zinoceras stenops, formerly 
referred by you to a new genus Tetheopsis: “I now learn on 
good authority that the symphyseal region in the specimen in 
question is entirely constructed of plaster of Paris.” As I am 
the one from whom you derived this information, I feel bound, as 
a matter of simple justice, to correct the above statement, for 
having just reéxamined the specimen with great care, I find that 
was in error in a very important respect. It is true that the left 
half of the symphyseal region (the only part visible when I first 
saw the specimen) is restored in plaster, but the right half is in- 
tact, and the restoration and drawing were made from that, a per- 
fectly legitimate proceeding. So much I can positively state of my 
: own knowledge, and I am also informed that the restoration was 
a made after the time when you saw the specimen and after Profes- 
= sor Marsh’s figure was published. Hoping that you will give 
. this correction a conspicuous place, I remain, 
a ery respectfully yours, W. B. Scott. 
__ | Note on the above—I gladly give place to the above correc- 
_ — tion, but must append a little additional information. I saw the 
` type specimen of T. stenops before 1885, probably in 1883. It 
matrix, and the left side of the skull was exposed. The- mandi- 
~ ble of that side was at that time entire, as represented in Profes- 
= sor Marsh’s plate. It exhibited a narrow entire alveolar edge 
Ss without trace of alveoli or of weathering. What has become ° 
_ this left half of the symphysis we are not informed. If it was 
_the osseous jaw, the genus Tetheopsis is well founded—Z. D. 
an , me 
=- — Among the scientific names included in the death-roll of 
the past year, is that of Thomas Bland, the author of numer- 
Ous papers, principally on the “Land shells of the Antillean 
islands and the North American continent,” Mr. Bland’s labors 
ag investigations included not only the descriptive and systema 
was then half imbedded in a mass of what I supposed to be 
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