Pennsylvania for Session 1897-98. II5 
and was succeeded by Dr. Kraemer, who spoke on “ Galls of 
the Oaks.” Both communications were illustrated by speci- 
mens and microscopic preparations. 
January 2r. Dr. S.C. Schmucker occupied the chair. A 
paper by Dr. Lucy L. W. Wilson, entitled “‘ Observations on 
the American Squaw Root (Conopholis Americana),’ was read 
in absence of the author by Dr. Macfarlane, and is herewith 
published. 
Mr. Walmsley and Dr. Macfarlane made communications 
on ‘“‘ Photo-Micrography,” as an aid to botanical illustration, 
and exhibited numerous photo-micrographs, lithograph repro- 
ductions and half-tone plates. A photo-micrographic demon- 
stration then followed. 
February 4. Dr. Adolph Miller in the chair. Mr. Henry 
S. Conard read a paper on “ Painter’s Arboretum,” founded 
by the brothers Mitchel and Jacob Painter. The general dis- 
position of the Arboretum and the rarer plants found in it 
were referred to, special note being made of a large Gingko, 
both species of Sequoia, Swamp Cypress with and without 
knees, Cryptomeria japonica and Juniperus recurva. A series 
of lantern slides illustrated the lecture. 
Mr. Roberts Le Boutillier then described a recent visit paid 
to Kew Garden, and showed a fine set of Lantern slides pre- 
pared from photographs taken by him. 
Professor Macfarlane described a trip made from Janu- 
ary 21-29 by Mr. Le Boutillier and himself to Wilming- 
ton, N.C. He contrasted the condition of the vegetation at 
Philadelphia and Wilmington, spoke of several plants in flower 
round the latter place, and stated that the Venus Fly Trap 
(Dionea muscipula) was in excellent condition, though some- 
what sluggish in its movements. The season had been a 
mild one, and this probably favored the healthy growth of the 
species. A piece of sod was exhibited measuring thirteen by 
eleven inches, on which grew thirty-five Dionza plants of 
varying size and age. Sartonia verna was found in full flower 
and subsequent study of its roots showed that these pos- 
