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1907; A.M., 1913; teacher of biology, State Normal School, Spear 
Fish, S. D., 1908-12; instructor in botany, State College, Brook- 
ings, S. D., 1914-16. 
Mr. Jackson Thornton Dawson, superintendent of the Arnold 
Arboretum (Jamaica Plain, Mass.) since its foundation, and 
widely known as a horticulturist, died on August 3, 1916, after 
a brief illness. He was seventy-five years old. A large part of 
the success of the Arboretum has been attributed by its director 
to Mr. Dawson’s skill in growing plants. He has had the rare 
and satisfying experience of enjoying in the Arboretum the shade 
of large forest trees which he himself raised from the seed. 
Many of the finest specimens in the Arboretum, of both trees 
and shrubs, were propagated from seedpans by Mr. Dawson. 
The July, 1916, issue of the Gardeners’ Chronicle of America 
contained, under the title “ Popular Hedge Plants for General 
Use,” a reprint of Brooklyn Botanic Garden Leaflets, Series II, 
No. 9 (September 16, 1914). The reprint was illustrated with 
three half-tone cuts. 
We learn from Science (for July 28, 1916) that the Stanford 
University Arboretum, comprising about 200 acres, and estab- 
lished by Senator Stanford in 1882, has been placed under the 
control of the department of botany of the university, with a 
view to utilize it more fully for scientific purposes. An annual 
appropriation is to be made for the acquisition of specimens, that 
for the current year being $1,000. Mr. H. A. Greene, president 
of the Monterey Tree Growing Club, has presented the Arbore- 
tum with 200 species, many of which are rare and impossible to 
obtain through ordinary trade channels. Mr. John McLaren, 
superintendent of Golden Gate Park, San Francisco, will assist 
in the general planting, especially along the principal avenues. 
In connection with the arboretum, the university has also set aside 
several tracts on the Palo Alto estate for the preservation of na- 
tive vegetation. These plant reserves embrace several hundred 
acres, and contain a variety of plant formations, such as stream- 
bank, redwood canon, oak, madrona forest, serpentine outcrops, 
and chaparral. In a preliminary survey of the reserves sixty- 
four species of native lignescent plants were catalogued. 
