244 LE NATURALISTE CANADIEN 
NorEk.—The Board will pay the travelling expenses of 
a worker only to the Station which is nearest his home. 
PERIOD OF WORK 
Excepting under very unusual circumstances all inves- 
tigators are expected to pursue their researches at the Sta- 
tion for a period of at least two months, and they must 
notify the Secretary of the date at which they expect to 
arrive. Investigators should make application for accommo- 
dation at a Station before the 15th of May. 
REPORTS 
All investigators must submit to the Board before its 
annual meeting in May a report of their researches for the 
previous season. If considered suitable, reports will be pu- 
blished in one of the series of publications issued by the 
Board. Reports not accepted for publication will be filed in 
the library of a Station for the information of other 
workers. 
LA TAXONOMIE ET LA MULTIPLICATION DES 
ESPECES EN BOTANIQUE 
(Continué de la page 234.) 
Je veux maintenant attirer l'attention sur une question 
physiologique: sur la floraison, 
