liv 



Council in our own country expended a large sum in distributing 

 magnified illustrations of them all over the country. Dr. Charles 

 V. Eiley's memoir, with its plate, has been republished in this 

 country by Messrs. Eoutledge (' The Colorado Beetle, with Sug- 

 gestions for its Repression, and Methods of Destruction,' 12mo, 

 1877), a compilation from which, by Dr. Andrew Wilson, was 

 also published in Edinburgh, by Messrs. Johnson. Dr. Stal 

 has also issued a small pamphlet with the title ' Om Colorado 

 Skalbaggen.' 



The natural history of the Rocky Mountain locust {Caloptenus 

 spretus), and the habits of the young or unfledged insects, as 

 they occur in the more fertile country in which they will 

 hatch during the present year, form the subject of the first two 

 numbers of the ' Bulletin of the United States Entomological 

 Commission,' issued by the Government Printing Office at 

 Washington (8vo, 1877). 



Prof. C. V. Riley has also published an elegant little volume 

 entitled ' The Locust Plague in the United States, being more 

 particularly a Treatise on the Rockj'- Mountain Locust, or so-called 

 Grasshopper, as it occurs east of the Rocky Mountains, with 

 practical recommendations for 'its destruction' (8vo, Chicago, 

 1877), in which the entire history of this very destructive 

 insect, in all its stages, is detailed at full length, with excellent 

 illustrations. 



A note, by Dr. H. Weyenbergh, upon the useful properties of 

 Mantis precaria, has been published in the ' Anales de la Republica 

 Argentina' (t. iv.). 



' On the Habits of Ants ' is the title of a pamphlet (large 8vo, 

 20 pages), published by Sir John Lubbock, full of interesting 

 particulars of the economy of these insects, " which have a fair 

 claim to rank next to man in the scale of intelligence, although 

 the anthropoid apes no doubt approach nearer to him in bodily 

 structure." 



Sir John Lubbock has also, with wonderful perseverance, the 

 more remarkable from his numerous other and more important 

 avocations, continued his observations on the habits of ants, 

 published in the ' Journal of Proceedings of the Linnean Society.' 

 The various chapters of this fourth memoir are devoted to — 



1 . The want of ingenuity in crossing chasms. 



2. Experiments testing intelligence. 



