( xxxvi ) 



pair in a closed room, but only in the open air; whilst others, 

 such as Actios I una, would pair in a closed room, and not in 

 front of an open window. 



Mr. Poulton exhibited crystals of formate of lead obtained 

 by collecting the secretion of the larva of Dicranura vinula on 

 283 occasions. The secretion had been mixed with distilled 

 water, in which oxide of lead was suspended. The latter 

 dissolved, and the acid of the secretion being in excess, the 

 normal formate was produced. Prof. Meldola promised to 

 subject the crystals to combustion, so that their constitution 

 would be proved by the final test. 



Mr. Oliver Janson called attention to Mr. Pryer's new 

 work, ' Rhopalocera Nihonica,' and to the fact that the 

 illustrations had been executed by Japanese artists. 



September 7, 1887. 



Dr. David Sharp, M.B., F.Z.S., President, in the chair. 



Donations to the Library were announced, and thanks voted 

 to the respective donors. 



Mr. Goss said he was requested to inform the Meeting that 

 in July last an Address to Her Majesty the Queen, on the 

 occasion of the Jubilee of her Reign, had been authorised 

 by the Council ; that the preparation of the Address had 

 been entrusted to a committee, consisting of Dr. Sharp and 

 the Rev. W. W. Fowler ; and that the following is a copy of 

 such Address : — 



" To the Queen's Most Excellent Majesty. 

 " We, the Honorary President, President, and Council of 

 the Entomological Society of London, desire to approach your 

 Majesty with sentiments of the most loyal devotion, and to 

 tender our dutiful congratulations on the Jubilee of your 

 Majesty's accession to the Throne; we rejoice in the great 

 National progress that lias been made under your benignant 

 sway, and as a Society devoted to the advancement of Science 

 we recognise with peculiar satisfaction the great development 



