
NATURAL HISTORY MISCELLANY. 495 
HERBARIUM OF THE LATE DR. WALKER-ARNOTT.— The herbarium be- 
longing to the late Dr. Walker-Arnott has, since his death, been acquired 
by the Glasgow University. Included in this is his magnificent collection 
of Diatomacez, which is contained in three large cabinets, and consists 
of fully ten thousand specimens, all mounted upon glass slides, ready for 
examination by means of the microscope. The specimens put up in 
enabled to push forward, it is to be hoped, the new edition of Pritchard's 
Infusoria, upon which he has been for some time engaged. The herba- 
Tlum is a very large one, being contained in twenty cabinets, each of 
Which holds at least four thousand specimens. The botanical library 
Boes with the herbarium, and thus will be stored in a safe resting-place, 
the results of the labor of fifty years in the life of this eminent botanist. 
- EDWARDS. 
New Loca ASPIDIUM ACULEATUM (L.) Sw. This fern, though 
widely distributed over the globe, is rare in the United States, being 
Confined to a few mountains and high valleys in New England and New 
York. It has been collected in the White Mountains of New Hampshire, 
Mountains, N. Y.,— where the writer found it in August of this year. 
growing abundantly, under conditions very similar to those of Mt. Mans- 
fleld Notch, This locality is one hundred and forty miles farther south 
than any previously known in our country. —JoHn H FIELD, Phila. 

ZOOLOGY. 
REMARKABLE ECHINODERM. — At the meeting of the Scandinavian 
Naturalists at Christiania in 1868, Professor Lovén laid before the Zoé- 
logical section the figures and description of a very remarkable Echino- 
It forms, in a new and very unexpected manner, a link between the palæ- 
920ic and the recent animal life. It is, strange to say, most nearly allied 
to Cystidea, es pecially to Agelacrinus, and will, no doubt, when its anat- 
OMY shall be known, give us a full clue to the comprehension of this 
eovering the supérior, or ventral surface; but only these terminal or distal 
| PIS Of the ambulacral furrows are open; in the rest of their course to- 
. Wards the centre of the disk they are covered up or converted into 
