1892-93.] NINKTEENTH MEETING. 241 



and in the fall, and could find no forcing effect from the electric light 

 Trees away from the lights seemed earlier : north and south streets were 

 earlier than those running east and west. The subject had been under 

 study at Cornell University for the past three years. The reports say 

 the naked light when placed near plants injures them ; a clear glass, even 

 a pane of glass, is beneficial, and opal globes give best results. Plants 

 which are much injured under a naked light may be benefited under a 

 protected one. As a rule, plants under the electric light in forcing houses 

 mature earlier than in the dark house. Lettuce can be hastened from 

 seven to ten days by only five hours of light per night. Radishes, beets, 

 spinach, cauliflower are slightly benefited. Certain kinds of flowers are 

 also benefited, and plants which are benefited seem to grow more rapidly 

 during the customary period. The researches point to a likelihood of 

 electric light being advantageous for forcing plants for the market. 



Mr. D. W. Beadle, B.A., LL.B., read a paper on " Danger menacing 

 our Pear Orchards from an invasion of Psylla Pyricola." 



NINETEENTH MEETING. 



Nineteenth Meeting, 25th March, 1893, the President in the chair. 



Donations and Exchanges, 46. 



Messrs. J. G. Ridout and E. B. Lefroy were appointed auditors. 



Mr. William Houston, M. A., read a paper on "The Laurentian Region 

 of Ontario." After discussing the extent of the region, its physical 

 character, geological and geographical features, and resources, he showed 

 its unsuitability for agricultural purposes, and advocated setting it aside 

 as a great national park. 



He concluded by making the following suggestions : — 

 " I. All free granting of land within that region should be at once and 

 forever abandoned. 



2. Some policy should be adopted with a view to securing the 

 reinvestment of abandoned lands in the Crown. 



3. So soon as they are reacquired steps should be taken to have 

 them reforested. 



4. Additional measures should be taken to secure the preservation of 

 game. 



5. The Legislature should exercise some control over the waste caused 

 by destructive lumbering operations. 



6. Access to the interior of the region should be facilitated. 



