l894-] ENTOMOLOGICAL NEWS. 223 



localities the remedy would be of no use at all; but perhaps in Kansas, 

 and in some of the adjoining States better success may be anticipated. 

 One very important point is made clear in the present report, and that is, 

 that the fatal disease is the white fungus or Sporotrichmn globuliferimt. 

 It will be extremely valuable to learn from other States where these ex- 

 periments have been tried what the success has been. In this connection 

 it js interesting to note Dr. Forbes' words in Bulletin No. 33 of the Illinois 

 Experiment Station concerning the use of contagious diseases. He says: 

 ' ' the results of this method are, however, not sufficiently certain to war- 

 rant an entire dependence upon it, and it should be made one feature 

 only of a general and concerted campaign." The experiment in Illinois 

 will be watched with a very great deal of interest, and will be of great 

 use as determining the applicabihty of this method in the Mississippi 

 Valley under circumstances widely differing from the state of affairs in 

 Kansas. In Iowa Prof Osborn has made experiments during the present 

 year, the outcome being decidedly unfavorable because of dry weather. 



A New Insecticide. — Under this caption Dr. C. H. Fernald calls atten- 

 tion to arsenate of lead in Bulletin No. 24 of the Hatch Experiment 

 Station of the Massachusetts Agricultural College, and he gives in detail 

 experiments made on the killing power of this substance on the tent 

 caterpillar and the larva of the potato beetle. He finds it sufficiently 

 effective at the rate of one pound in one hundred and fifty gallons of 

 water, while no injury to foliage appeared where it was used at the rate 

 of one pound in four gallons of water, an advantage which no other ar- 

 •senical mixture can boast of. The materials, acetate of lead and arsenate 

 of soda are cheap, and the insecticide is prepared by putting eleven ounces 

 of the former and four ounces of the latter into a hogshead containing 

 150 gallons of water. It will be seen at once that, if the new material 

 will do what is claimed for it, it possesses many advantages over Paris 

 green and London purple. It is certainly well worth a thorough trial. 



Notes and. News. 



ENTOMOLOGICAL GLEANINGS FROM ALL QUARTERS 

 OF THE GLOBE. 



[The Conductors of Entomological News solicit, and will thankfully receive items 

 of news, likely to interest its readers, from any source. The author's name will be given 

 in eav-'h case for the information of cataloguers and bibliographers.] 



To Contributors.— All contributions will be considered and passed upon at our 

 earliest convenience, and as far as may be, will be published according to date of recep- 

 tion. Entomological News has reached a circulation, both in numbers and circumfet 

 ence, as to make it necessary to put " copy" into the hands of the printer, for each number, 

 three weeks before date of issue. This should be remembered in sending special or im- 

 portant matter for certain issue. Twenty-five " extras" without change in form will be 

 given free when they are wanted, and this should be so stated on the MS. along with the 

 number desired. The receipt of all papers will be acknowledged. — Ed. 



The Whistling Tree. — A species of Acacia which grows very abun- 

 dantly in Nubia and the Soudan is also called the " whistling tree" by the 



