THE NATIONAL NURSERYMAN 
141 
New Hampshire, New Jersey, New Mexico, New York, 
North Carolina, Oklahoma, Oregon, Pennsylvania, Rhode 
Island, South Carolina, Tennessee, Texas, Utah, Ver¬ 
mont, Virginia, Washington, West Virginia, and the Dis¬ 
trict of Columbia, and by this Notice of Quarantine No. 
38 do order that no plants of the following species, Ber- 
beris aethensis, B. altaica, B. amurensis, B. aristata, B. 
asiatica, B. atropurpurea, B. brachybotrys, B. hrevipani- 
eulata, B. huxifolia, B. canadensis, B. caroliniana (Car¬ 
olina), B. coriaria, B. cretica, B. declinatum, B. fendleri, 
B. fischeri, B. fremontii, B. heteropoda, B. ilicifolia, B. in- 
tegerrma, B. laeiflora, B. lycium, B. macrophylla, B. 
neapalensis, B. neuhertii, B. siberiea, B. sieboldii, B. sin¬ 
ensis, B. trifoliolata, B. umbellata, B. vulgaris including 
its subspecies and horticultural varieties, Mahonia aqui- 
folium, M. diversifolia, M. glauca, and M. repens, shall 
be moved or allowed to move interstate to points outside 
of the quarantined area. 
This quarantine shall not apply to the movement by 
the United States Department of Agriculture of the pro¬ 
ducts named for experimental or scientific purposes. 
Done in the District of Columbia this 15th day of April, 
1919. 
Witness my hand and the seal of the United States De¬ 
partment of Agriculture. 
D. F. Houston^ Secretary of Agriculture. 
THE WORK OF THE BED CROSS GOES ON 
The great humanitarian trend that has developed as an 
aftermath of the horrors of the war has awakened the 
peoples of all countries to the immediate need for devel¬ 
oping these humanitarian efforts along the broadest lines. 
The amazing percentage of men rejected for military 
service because of physical conditions that might easily 
have been prevented; the jiitiful wastage of manhood and 
womanhood througli under-nourished and under-devel¬ 
oped childhood; the terrible mortality consequent on epi¬ 
demics which, if not actually preventable would at least 
have been more controllable if humanity at large had a 
better understanding of hygiene and sanitation, all these 
things have been brought so forcibly before the minds of 
thinking people that remedial efforts are not only neces¬ 
sary but imperative. 
To turn to the Bed Cross as a medium through whom 
this widespread educational campaign may he carried on 
all over the globe is a natural result. Closely in touch 
with every phase of relief, whether it be war, disaster, 
epidemic or the personal contact with individuals main¬ 
tained through the special branches of its work, the Red 
Cross is peculiarly well fitted to aid in this international 
service. 
At the jiresent time there is in session at Cannes, 
France, a conference attended by some of the foremost 
specialists of the medical and sanitary professions of 
Great Britain, France, Italy, Japan and the United States. 
The problem which these men are discussing is one ol 
the most serious ever faced by the Red Gross, and deals 
with the organization of an International Council and 
Bureau of Hygiene and Public Health which will consider 
the work to be undertaken in connection with the preven- 
tion of epidemic disease, tuberculosis, venereal disease 
X and child welfare. The results of this conference will be 
submitted to the International Conference of Red Cross 
Societies to be held at Geneva, Switzerland, thirty days 
after ])eace is, oflicially declared. This Red Gross Com¬ 
mittee will be composed of re})resentatives from the Red 
Gross Societies of tlie five countries re[)resented at Cannes 
and Henry P. Davison, formerly Chairman of the War 
Council of the American Red Cross, will act as Chairman. 
The outgrowth of this congress will he a iiernianent 
working organization, with headijuarters in Geneva, 
whose jiei'sonnel will be made u}) of experts who will 
keep in touch with the developments throughout the world 
of the various matters in wliich the Red Cross is inter¬ 
ested and through whom each Red Gross organization will 
be kejit in touch with the march of human events. Not 
only will the peace activities of the Red Gross be directed 
toward the relief of human suffering and its preventon, 
but an effort will be made to arouse all peojiles to a sense 
of their responsibility for the welfare of their fellow be¬ 
ings. 
During the last four weeks James McHutchison & Co., 
Importers, New York, have received from Holland over 
1950 cases and hales of nursery stock. All are now sold. 
This rush was due to the Hollanders getting rid of the 
varieties grown for American trade before the door 
closes. 
NOTES FROM THE ARNOLD ARBORETUM 
Unfolding leaves. Much is to be learned of trees by 
the study of their unfolding leaves. The color of these 
and the absence or presence of a covering of down may, 
for some trees like the Lindens, furnish the best char¬ 
acters for distinguishing related siiecies. This is cer¬ 
tainly one of the best times of the year for the study of 
Oak-trees and Hickories. The unfolding leaves are 
often brilliant in color, and their hairy covering, when 
such a covering exists, furnishes a useful character for 
determining such trees. Very beautiful and interesting, 
too, are the very young leaves of the Horsechestnuts. In¬ 
deed there is not a tree or shrub which, as the leaves un¬ 
fold, is not capable of affording an obseiAdiig lover of 
plants much information and the keenest pleasure, and 
this is a pleasure which can be found in the Arboretum 
in a new form every day from the unfolding in early 
April of the leaves of the California Osmarona cerasi- 
formis and the Chinese Prinsepia sinensis to the appear¬ 
ance of those of the Fringe-tree {Chionanttius virginica) 
which remains leafless until after the flowering of many 
shrubs and trees has passed. 
The wild Pear-trees. Much attention has been paid 
to the formation of the Arboretum collection of these trees 
because several of the species are among the most beau¬ 
tiful of all flowering trees. To jiomologists, too, they are 
of special interest as the wild types from which the cul¬ 
tivated pears have been derived, and as possible factors 
in the production of new and jierhaps hardier races of 
fruit trees. Wild Pear-trees are found in China, on the 
Himalayas, in southwestern Asia and in southeastern and 
southern Europe. There is no native Pear-tree in Japan 
or in any part of America. About twenty-live species are 
recognized by botanists, and of these at least twenty with 
