1892 -J Entomology. 79 



recorded a case in which carbon bisulphide mixed with air was 

 ignited by an arm of the pipe through which it was passing being 

 unscrewed. Dr. Popel has also found that "mixtures of carbon 

 bisulphide and air readily ignite when brought into contact with iron 

 pipes through which steam at | atmosphere (135°— 145° C.)is passing 

 the less carbon bisulphide there is in the mixture the higher is its 

 ignition point, and the sharper the explosion." This substance is now 

 extensively used to clear mills of insects, and the caution is common 

 to see that no fire in any form reaches the rooms where it is in use. 

 The facts above given emphasize the necessity not only of cautioning 

 against fire, but also against the presence of steam or hot water pipes; 

 and perhaps also against makinj 



A Collection of Exotic Insects.— I recently had the pleasure 



of look 



nagnificent collection of exotic insects, owned by Mr. 



John D. Locke, of Haverhill, New Hampshire; and was surprised to 

 find so rare a lot of insects known to very few entomologists. The 

 collection was purchased by Mr. Locke, who is an enthusiastic natur- 

 alist, a few years ago in Vienna, of the widow of a Professor Schneider, 

 the latter having spent a life-time in getting it together. The collection 

 consists chiefly of Lepidoptera and Coleoptera, and contains specimens 

 from all over the world. Many of the butterflies, moths and beetles 

 are of gigantic size : e. g., the Atlas moth from India, which measures 

 9x6| inches ; Erebus agropyrus from South America which measures 

 10 inches across the wings; Phaomagigas, a "lantern fly" which is 10 

 inches long, and the mammoth Goliath beetles which must be seen to 

 be appreciated. Fortunately the collection is in good hands, and is 

 carefully gone over at stated intervals and kept free from pests and 

 dust— Clarence M. Weed. 



Entomological Notes.— The Horn Fly (Htematobia serrata) 

 according to a recent report from Mr. H. E. Weed, of Mississippi, has 

 appeared in that state in sufficient numbers to attract the attention of 

 farmers. It seems destined to spread widely and rapidly. 



Professor A. J. Cook is to spend the Winter in California. 



In a recent Nature we find this item: "Every one interested 

 hi the scientific aspects of agriculture was sorry to hear that Mis? 

 Ormerod had felt it necessary to resign her position as consulting 

 entomologist of the Royal Agricultural Society. It is much to be 

 regretted that misunderstandings should have led to the severance of 

 nth the Society with which she has so long been hon- 



