123 



more tlian balanced by tlieir rapid propa<^ation. In spite of the 

 numerous aids and friends of the hawthorn, thecombined work 

 of the A/>/iis and the black fungus succeed in makini^ the plants 

 quite unsiL,dul)- durinf^ the summer months, thou<^h none are 

 actually killed. 



In conclusion it may be stated that plant-lice arc quite easily 

 controlled by spraying and fumigation, directions for which may 

 be obtained from almost any state experiment station or from the 

 Dept. of Agriculture, Washington, D. C. The behavior of the 

 black fungus would suggest a cure by distributing the diseased 

 Aphis among the infested plants ; or if large numbers of diseased 

 Aphis are available, they might be crushed and mixed with water 

 to be applied as a spray, thus spreading the disease more quickly 

 and uniformly. This method would seem especially feasible 

 during a rainy period as moisture favors the spreading of the 

 disease, whereas dry weather promptly checks it. This is cer- 

 tainl}^ worthy a trial and further study. It will also be interest- 

 ing to find what the California Agricultural College may recom- 

 mend in regard to the possibilities with the ladybird beetles. 



California College of Pharmacy, San Francisco. 



QUELQUES MOTS SUR L'ARTICLE DE MR. UNDER- 

 WOOD : "A MUCH-NAMED FERN" 



By II. Christ 



Dans le no. 5, vol. 5 (Mai 1905) de Torreya, Mr. Lucien 

 Underwood relevc le fait, regrettable sans doute, que j'ai rebap- 

 tise une petite fougcre, nommee d'abord AcrosticJiiim Moord E. 

 G. Britton, sans connaitre son nom primitif, et que j'ai change 

 plus tard mon nom a plusieurs reprises. Avec la verve critique 

 qui lui est propre, il se recrie : "And all this is German syste- 

 matic (?) botany of the twentieth ccntur}' instead of the nine- 

 teenth, where it would not so much surprise us." 



Je me hate de revendiquer ce compliment exquis pour moi 

 e.Kclusivement, pour moi qui ne suis point Germain, mais humble 

 Suisse, absolunicnt ncuti-c dans la lutte acharnee des grandes 

 nations cjui s'infiltre partout, mcnie dans la Science aimable ! 



