156 



JOURNAL OF THE 



[June, 



"The habits oi Meloc have been fully described by Prof. C. V. 

 Riley (See "American Naturalist," 1878, p, 216). He says, in 

 effect : 'This insect lays more than three thousand eggs, deposit- 

 ing them in the ground. The triungulin larvae are very active. 

 Soon after hatching, they climb certain flowering plants and 

 attach themselves to bees and flies which visit the flowers. All, 

 however, are destined to perish excepting the few fortunate ones 

 that are carried to the nest of the Anthophora, a honey-storing 

 bee which tunnels for itself a habitation in the ground. The 

 triungulin devours the egg of the bee. Moulting, and passing 

 into the second and less active larval state, the insect feeds on 

 the honey garnered by the bee.' " 



Mr. Zabriskie exhibited also the imago, male and female, of 

 Meloc angusticoliis, and the Blister-beetles Cantharis vcsicatoria 

 and Lytta marginata, which are closely related to Meloc. 



DYNAMO-ELECTRIC MACHINES. 



Mr. G. F, Kunz exhibited two small dynamo-electric machines, 

 one of which was operated by the foot, the other by the hand. 

 They were loaned for the occasion by the Excelsior Electric 

 Apparatus Company, of New York, Mr. Kunz said : " With 

 the aid of a small gas engine or a small water motor, a dynamo- 

 electric machine will produce a brighter and steadier light than 

 can be obtained from a battery, and will produce it at less cost. 

 For microscopical illumination it can be used with great advan- 

 tage, especially in photography." 



zentmayer's abbe condenser. 



Mr. C. S, Shultz exhibited and described the Zentmayer Abbe 



