38 THE CANADIAN ENTOMOLOGIST. 



small. The Scuppernong, derived from the Cordifolia, attains a prodi- 

 gious developement, one stock covering one-third of a hectare, but it is 

 too wild. All these resist the Phylloxera better than our varieties, perhaps 

 because they have not been so long in a state of cultivation. The insect 

 does not extend its ravages beyond the small roots of the American 

 varieties. But while the American vines do extremely well in France, they 

 should not be imported where Phylloxera is unknown, for fear of intro- 

 ducing it, as the speaker is decided in asserting that it originated in 

 America. 



M. Max Cornu gave a summary of his experiments. He confined 

 himself to substances giving off poisonous vapors, among which sulpho- 

 carbonates gave the best results. 



M. Boucher, de Bernard, in a communication, advocated grafting 

 French vines on American stocks, thus obtaining good vines and roots 

 capable of resisting the attacks of the Phylloxera. M. Leissoniere sup- 

 ported these ideas, asserting the positive inferiority of the American vines. 

 M. Terrel de Chenes stated that during five or six weeks the Phylloxera 

 left its subterranean abode and crawled up the stock, hiding under the 

 bark six inches above the ground. M. Douysset told how well the 

 American vines grew at Roquemaure. And the session terminated with 

 a communication from M. Petit, of Nimes, who lauded the value of coal- 

 tar against the Phylloxera. 



At 8 o'clock, 29th October, the members assembled at Comedy 

 Square, to visit the field of Las Sorres, and view with their own eyes the 

 results spoken of by M. Mares. The experimental field should give some 

 consolation to our brethren of the South, for the squares of green vines 

 in the middle of general desolation show that the genius of man may 

 triumph over the Phylloxera, as it already has over the Oidium. 



The cellar of Saporta, belonging to M. Vialla, was visited, and the 

 excursion terminated at the vineyard of M. Gaston Bazille, near Lattes. 

 His yards join others not yet treated for the Phylloxera, and we can 

 hardly describe the extraordinary difference in the vines. Here they are 

 digging up the stocks to throw away ; there they are covered with leaves 

 and vigorous branches. A part were treated with cow-urine and calcium 

 sulphate, a part with urine alone. In another place, submersion has been 

 tried with success, and new ditches are now being dug. 



In the session of October 30, M. Lichtenstein continued an essay by 

 M. Roessler, delegate of the Austrian government. In his country the 



