Xlll 
admit and correct one's own mistakes is praiseworthy, not blameworthy. 
I have no greater love for error than Mr. Lewis has, but I hope I am a little 
more tolerant of the mistakes of others than he is. All mistakes are to be 
regrett^":!; but when made, and afterwards found out to be mistakes, 
suoiy the best thing is to correct them. It can scarcely be contended that 
no one should publish anything until there is a certainty of freedom from 
mistake : on this principle, what would the present state of Science have 
been? Certainly if Mr. Lewis had waited until he attained immunity from 
blunder, we should not have had the satisfaction of reading his ' Discussion ' 
in the year of grace 1873." 
Mr. Bates put some questions to the meeting, suggested to him by 
Mr. Darwin, with a view to eliciting information as to sexual differences in 
insects furnished with ocellated spots ; and also as to sexual differences 
among the Buprestidse. A conversation ensued, in which Mr. Jenner Weir 
stated that in Satyrus Hyperanthus the spots .were more numerous in the 
female than in the male, and Mr. Butler remarked that Drusillus had 
double spots in one sex. It was also stated that Mr. Saunders had detected 
corresponding sexual differences in the Buprestidse. 
New Part of ' Transactions.'' 
Part V. of the ' Transactions ' for 1879, completing the volume, was on 
the table. 
7 April, 1873. 
H. T. Stainton, Esq., V.-P., in the chair. 
Donations to the Library. 
The following donations were announced, and thanks voted to the donors : 
— * Bulletin de la Societe Imperiale des Naturalistes de Moscou,' 1879, 
No. 3; presented by the Society. ' Annales de la Societe Entomologique 
de Belgique,' tome xv. ; by the Society. ' The Canadian Entomologist,' 
vol. v., no. 3 ; by the Editor. ' The American Naturalist,' vol. v., nos. 2 — 
12, and vol. vi., nos. 1 — 11 ; by the Editor. ' Memoirs of the Peabody 
Academy of Science,' vol. i., nos. 2 and 3; and 'Fourth Annual Report of 
the Trustees of the Peabody Academy of Science for the year 1871 ; ' by 
the Academy. * Record of American Entomology for the year 1870 ; ' by the 
Editor, A. S. Packard, jun., M.D. 'L'Abeille,' x., livr. 5 and 6; by the 
Editor. 'Exotic Butterflies,' part 86; by W. W. Saunders, Esq. 'Lepi- 
doptera Exotica,' part 16 ; by E. W. Janson, Esq. ' Traite Elementaire 
d'Eutomologie ; ' by the Author, M. Maurice Girard. ' The Entomologist ' 
and the 'Zoologist' for April; by the Editor. 'The Entomologist's 
