4706 Entomological Society. 



two stones in the same place ; they carried the stones up the stream, and appeared to 

 drop them when the strength of the springing forward was exhausted. We thus see 

 an admirable adaptation of the mouth of the lamprey to its habits ; it doubtless feeds, 

 exclusively, on the minute animals which are found in abundance under all the stones. 

 — Id. 



Gonepteryx Rhamni double-brooded. — The Rev. Mr. Hawker (Zool. 4650), in 

 noticing the occurrence of Rhamni, adds, without further comment, the expression 

 " double-brooded.'' Now, I think no one ever had more opportunities of making the 

 acquaintance of this butterfly than I have. I have seen it on new year's day and 

 almost every succeeding day in the year, on Christmas-day most certainly, and have 

 taken careful note of its condition, and my conviction — my firm conviction — has been 

 that there is but one (an autumnal) brood during the year, and I shall feel extremely 

 obliged if Mr. Hawker will detail the particulars of the interesting and important dis- 

 covery he has made. I may add, that I have spoken on the subject to Mr. Doubleday 

 and other eminent Lepidopterists, to which title I lay no claim, and I find the dis- 

 covery is as new to them as to myself. — Edward Newman. 



Proceedings of Societies. 

 Entomological Society. 



April 2, 1855. — John Curtis, Esq., President, in the chair. 



Donations. 



The following donations were announced, and thanks ordered to be given to the 

 donors: — ' Abhandlungen der Mathematisch-Physikalischen Classe der Koniglich 

 Bayerischen Akademie der Wissenschaften,' Vol. xvii. Part 2 ; ' Bulletin der Koniglich 

 Akademie der Wissenschaften,' Nos. 1 — 52, 1853; ' Ueber das Klima von Miinchen,' 

 von Karl Kuhn ; by the Academy. ' The Literary Gazette ' for March ; by the 

 Editor. 'Journal of the Society of Arts' for March; 'Catalogue of the Seventh 

 Exhibition of Inventions;' both by the Society of Arts. ' Proceedings of the Royal 

 Society,' Vol. vii. Nos. 9 and 10 ; by the Society. ' The Zoologist' for April; by the 

 Editor. ' Proceedings of the Berwickshire Naturalist's Club,' Vol. iii. No. 5 ; by the 

 Club. ' The Entomologist's Annual for 1855,' 2nd Edition ; by the Editor. Hewit- 

 son's ' Exotic Butterflies,' Part 14 ; by W. W. Saunders, Esq. ' Entomologische 

 Zeitung,' 1855, Nos. 1 and 2; by the Entomological Society of Stettin. Fifty-two 

 specimens of British Lepidoptera; by H. Doubleday, Esq. 



Distribution of the Society's Duplicate Insects. 



The Secretary announced that the Council had determined to distribute among the 

 Members the duplicate specimens in the Society's collection of British Coleoptera, 

 Exotic Coleoptera and Exotic Diurnal Lepidoptera ; and that, in order to give the 

 country Members an opportunity of selection, the distribution would not take place 



