PRODUCTION AND TRANSMISSION OP ELECTRICAL ENERGY. 393 
CONVERSAZIONE. 
(6tli January, 1887.) 
For an account of this, see the Report of the Secretaries. 
OUR WASPS. 
SYLLABUS OF LECTURE BY G. C. BIG NELL, F.E.S. 
(Read 13th January, 1887.) 
Wasps : What are they ? The gregarious and solitary. The sting. 
The classification. Neuration of the wings (illustrated). Hooklets 
of wings. Names of insects. Life-history of the gregarious 
wasp — egg, larva, pupa, and perfect insect. The food of the 
gregarious wasp. Homes and food of the solitary wasp. Balance 
of life. Parasites. 
PRODUCTION AND TRANSMISSION OF 
ELECTRICAL ENERGY. 
BY JOS. M. COON. 
(Read 20th January, 1887.) 
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