PROCEEDINGS FOR 1895 XCIX 
Professor Macoun has offered to receive specimens from any locality and 
to give in exchange for them an equal number of the desiderata of the 
person or society sending them, the only proviso being: that the speci- 
mens be from the vicinity in which the collector resides, and not from 
several parts of a province. To facilitate such exchange, check-lists will 
be sent to all who may apply for them. AIl communications connected 
with such exchange should be addressed to the “ Curator of the Herbarium, 
Geological Survey Department, Ottawa.” Letters and parcels of speci- 
mens are transmitted to this address without postage, according to law. 
The place and date of collection of every specimen, with the name 
of the collector, should always accompany it. If this label be lost the 
specimen may be valueless. If the label should happen to go with the 
wrong specimen it is worse than valueless. 
The most convenient manner of obtaining the determination of 
plants from the curator of the Canadian herbarium or any other botanist, 
is to make an exact duplicate of the set, the duplicates being similarly 
numbered. Where but one specimen has been obtained, it can, of course, 
be returned to the collector. The botanist determining the plants keeps 
the set sent him, and returns simply a list of the names corresponding to 
each number.* Great care must be taken, especially in the case of the 
smaller cryptogams, that one and the same species are in the duplicates. 
Mistakes often occur from the indiscriminate division of a tuft of moss or 
lichen supposed to contain only one species, while it may contain two or 
more, and even these in different proportions, in the supposed duplicate. 
General Officers Elected, May, 1895. 
President '—Prof. George Lawson, Ph.D., LL.D., Halifax, N.S. 
General Secretary-Treasurer—A. H. Mackay, B.A., B.Sc., LL.D., 
Halifax, | 
Secretaries for the Provinces. 
Newfoundland—Rev. A. C. Waghorne, St. Johns. 
Prince Edward Island—John MacSwain, Charlottetown. 
Nova Scotia—A. H. Mackay (Gen. Sec.-Treas.), Halifax. 
New Brunswick—G, U. Hay, M.A., Ph.B., St. John. 
Quebec-—Prof. D. P. Penhallow, B.Sc., McGill University, Montreal. 
Ontario—J. A. Morton, Esq., Wingham. 
Manitoba—Rey. W. A. Burman, B.D., Winnipeg. 
Assiniboia—Rey. George Arthur, B.Sc., Lake’s End. 
Alberta—T. N. Willing, Esq., Olds. 
Saskatchewan—Rev. C. W. Bryden, Battleford. 
British Columbia—A. J. Pineo, B.A., High School, Victoria. 



1The president, Professor Lawson, died on the 10th November, 1895, after a 
brief illness following a stroke of paralysis. Ep. 
