415 
dition under pressure, before mailing. While any convenient means for accomplishing 
this result may be employed, the following procedure is reecmmended: Select a flower- 
ing or fruiting branch, as the case may be, which, when passed, shall not exceed six- 
teen inches in length by ten inches in width. If the plant be an herb two or three 
feet high, it may be doubled to bring it within these measurements. If it possess root 
leaves, some of these should be included. Lay the specimen flat in a fold of news- 
paper and place this in a pile of newspapers, carpet felting, or some other form of 
paper which readily absorbs moisture, and place the pile in a dry place under a pres- 
sure of about twenty to thirty pounds, sufficient to keep the leaves from wrinkling as 
they dry. Ifa number of specimens are pressed at the same time, each is to be sepa~ 
rated from the other by three or four folded newspapers or an equivalent in other kinds 
of paper, 
In twelve to twenty-four hours these papers will be found saturated with the ab- 
sorbed moisture and the fold containing the specimen should be transferred to dry ones. 
This change should be repeated in from two to five days, according to the state of 
the weather, the place where the drying is done, the fleshiness of the specimens, etc.. 
The best way to secure the desired pressure is by means of a pair of strong straps, 
though weights will do. The best place for drying is beside a hot kitchen range.. 
When dry the specimens should be mailed between a or some other light but 
stiff materials which will not bend in transit. 
It is a most important matter that the name and address of the sender should be 
attached to the package and that the specimens, if more than one, should Le numbered, 
the sender retaining also specimens bearing the same number, to facilitate any corre- 
spondence which may follow. The Sub-Commission requests that, so far as practi- 
cable, all plants sent be represented by at least four specimens. 
H. H. RUSBY. M. D.,. 
Chairman of the General Commission.. 
NEW York COLLEGE OF PHARMACY. 
VALERY HAVARD, M. D. 
Chairman of the Sub-Commission.. 
Fort SLocum, Davins IsLaAND, New York. 
Reviews. 
Nomenclaturregein fir die Beamten des Kiniglichen Botanischen 
Gartens und Museums 2u Berlin, (Notizblatt. Konigl. Bot. Gart. 
1: 245-250. 6Je. 1897.) 
The staff of the Royal Botanical Garden and Museum of Ber- 
lin have framed a set of rules for their guidance in nomenclature, 
and orthography of names, of which the following is a translation 
with annotations: 
1. The principle of priority in the choice of names of genera 
