482 
It occurs northward to Delaware, and is to be looked for in south- 
ern New Jersey in the pine barrens. To more exactly determine 
the distribution of the several trees popularly known as pignuts 
(including H. microcarpa or odorata) | would be glad to get speci- 
mens of these trees, especially from Michigan, central New York, 
New Jersey, Pennsylvania and Delaware, and from all of the 
southwestern States. 
The essential parts of a hickory specimen are vigorous twigs 
with well developed buds, and fruit and leaves. I will return any 
material sent if desired, and will determine any for persons wish- 
ing it. W. W. ASHE. 
RALEIGH, N, C. 
Lhe Botanical Society of Pennsylvania.—This Society was re- 
cently instituted at the University of Pennsylvania. Under its 
auspices a fortnightly series of popular meetings and of scientific 
meetings will be held during the session, dates will be arranged for 
the study of plants in evening classes, while during the next Spring 
and Summer a course of laboratory demonstrations and field ex- 
cusions will be planned, to all of which members will be freely 
eligible. 
Programme for the First Regular meeting, Oct. 23, 1897: 
1. “The Life-history of some Insects injurious to our Trees.” 
(Illustrated by a suite of specimens presented by Mrs. C. C. Har- 
rison.) Dr. H. C. Schmucker. 
2. “Our minutest Plants.” Dr. A. C. Abbott. 
3. “* Native and foreign Pitcher-Plants.” (Illustrated by lan- 
tern slides and specimens from the garden and greenhouse.) Prof. 
J. M. Macfarlane. 
4. “Our Forest Trees.” (Illustrated by lantern slides.) Dr. 
J. T. Rothrock. 
5. “Seaweeds from New England.” (With microscopic dem- 
onstration.) Dr. Adeline F. Schively. 
6. “ Microscopic Photography.” Prof. J. F. Macfarlane. 
7. “The Micro-Lantern and Its Uses.” Dr. J. W. Harsh- 
berger. 
The first number of “ The Plant World” was issued in October, 
as already announced. Three of the editors contribute articles to 
