Botanical Society of Canada, 395 



plants, and for supplying in return the desiderata of sucb members. 

 The following regulations have been framed for regulating the 

 exchange of specimens : 



1. The distribution of specimens shall be conducted by the 

 Curators, and shall commence on the l5th November annually, 

 before which time all contributions of specimens must be sent in 

 by members who desire to participate in the distribution. 



2. To entitle a Fellow or Subscriber to a share of the Society's 

 duplicate specimens at any of the annual distributions, he shall 

 have transmitted to the Society before the 1st November not less 

 than 50 species of plants, with as many duplicate specimens of 

 the rarer ones as possible. 



3. All specimens contributed to the Society must be carefully 

 prepared, by being pressed between sheets of paper in the usual 

 way, but not fastened down to paper in any way. Each specimen 

 is to be accompanied by a lable containing the name of the plant 

 together with the locality where collected, the date of collection, 

 and the collector's name. 



4. Universities and societies forming herbaria and corresponding 

 with the Society will be permitted to take precedence of the mem- 

 bers in the annual distributions. The Society's public herbarium 

 will be invariably supplied with such specimens as may be required 

 before any distributions takes place. 



5. Members are required to send, along with annual contribu- 

 tions of specimens, a list of those species which they desire to re- 

 ceive in return, or otherwise to specify in suflScient explicit terms 

 the nature of the plants wished for. 



The above rules will be strictly observed. Foreign botanists, 

 in various parts of the world, have expressed a desire to contri- 

 bute to the Society's collections. There are spontaneous and 

 liberal offers from Tuscany, Sicily, France, Australia, and other 

 distant parts. It remains for the botanists of Canada to say, 

 by their contributions this autumn, whether the Society will be 

 able to enter upon such advantageous exchanges. 



All the communications for the Botanical Society of Canada 

 are to be addressed to Prof. Lawson, Kingston, C.W. 



The Areas of Botanical Distribution throughout the central 

 part of British North America. — James Hector, M.D., accompa- 

 nied the late expedition sent out by the British government, un- 



