6 
.REGULATIONS OF THE CLUB. 
1. The object of the Botanical Exchange Club is to facilitate tlie 
exchange of dried specimens of British plants, especially of critical 
species, and varieties. Any one wishing to become a member will be 
admitted on payment, to either of the Secretaries, of an annual sub- 
scription of Five Shillings ; and on sending a parcel of dried plants in 
accordance with the subsequent rules will be enrolled as a “ contributing 
member.” He will then be entitled to share in the distribution of 
specimens made in January of the year following that in which his 
subscription and parcel were sent. 
2. Specimens sent for distribution must be carefully dried ; must 
not exceed in size half a sheet of demy (16 by 10 inches) ; and must 
illustrate the species they represent as completely as possible. Plants 
more than 16 inches long should be once or twice folded, if by so 
doing the roots can be preserved. (In the Cyperacece , Gramina , and 
smaller Ferns no specimens should be sent without roots, except in the 
case of very rare species, which might be in danger of extermination.) 
No plant must be sent that is not included in the list of desiderata for 
the current year, unless it be additional to those enumerated in the 
6th edition of the ‘ London Catalogue of British Plants,’ or be from 
an unrecorded station, or be a variety. 
3. Each specimen must have a label, bearing the number and name 
of the species as given in the 6th edition of the ‘London Catalogue;’ 
also the locality and county where, and the date when, the specimen 
was collected, and the collector’s name. The label should be affixed 
to the specimen by cutting a transverse slit in the base of the label, 
