January — Febniarj' 1SS4.] 



PS re HE. 



i:i:5 



PSYCHE. 



CAMBRIDGE. MASS.. JAX.-FEB.. 1SS4. 



Communications., exchangees and ediiors* copies 

 should be addressed to Editors of Psyche. Cam. 

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 P5VCHE must be properly authenticated, and no anony- 

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Editors and contributors are only responsible for the 

 statements made in iluir ozvn communicatiojis. 



M'orks on subjects not related to entomology -ivill not 

 be reviewed in Psyche. 



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PROCEEDINGS OF SOCIETIES. 



CAMBRIDGE EXTOMOLOGIC.\L CLVB. 

 ( Continued from p- iib.J 



11 May 1SS3. — The 93rd meeting of the 

 Club was held at 19 Brattle Square, Cam- 

 bridge, II Mav 1SS3. In the absence of the 

 President, Mr. S. H. Scudder was chosen 

 Chairman. Three members were present. 



The minutes of the last meeting were read 

 and approved. The additions to the library 

 of the Club were announced by the Secretary. 



Mr. R. Hayward exhibited a specimen of 

 C/i/aeniiis tomentosus taken at Milton, Mass.. 

 which varied strikingly from the common 

 form of this in.sect. 



Mr. S. H. Scudder showed a collection of 

 colored figures of insects drawn by Major J. 

 E. LeConte. These figures were a continua- 

 tion of the collection which was exhibited at 

 the last meeting. 



Mr. S. H. Scudder described the habits of 

 -Myrmeco/'/iila and gave a history of speci- 

 mens previously mentioned as from America. 

 Living specimens of young J/, pergandi. 

 taken among ants under bark, at Washing- 

 ton. D. C., were shown. 



Mr. S. H. Scudder called attention to the 

 eleventh part of \V. H. Edwards" -Butterflies 



of North America" and showed specimens of 

 eggs and larvae of T^ctnonias itais. 



Mr. G. Dimmock described a mode of 

 mounting eggs of insects, or other small ob- 

 iects. for the collection, in such a way that 

 thev may be examined easily with the micro- 

 scope. The eggs or other objects are mount- 

 ed in rings of cork between two thin cover- 

 glasses such as are used for microscope slides. 

 Thus mounted, and sealed with black lac or 

 other means, the specimens can be pinned in 

 the collection with safety and neatness. 

 Specimens can be mounted in Canada balsam 

 in these cork rings, in the way described by 

 Cameron ( Proc. nat. hist. soc. Glasgow, iSSi- 

 iSS:;, v. 5. pt. I. p. 4-7'. who used, however, 

 paper in place of cork. Cork is lighter than 

 paper, is more convenient for pinning, and 

 can be cut easily into rings of different sizes 

 with a cork-borer such as is used in chemical 

 laboratories. If circular cover-glasses are 

 u.sed the cells can be sealed neatly on a turn- 

 table for preparing microscope slides. Speci- 

 mens illustrating several styles of mounting 

 were shown. 



Mr. A. F. Foerste communicated (through 

 the Secretarv) a note upon the fluid thrown 

 out bv Afiacus luna just after it emerges from 

 the chrvsalis. 



BIOLtKSlCAL SOCIETY OF WASHINGTON. 



14 Dec. 1SS3. — . . . .\ paper by Dr. C : V. 

 Riiev on -The use of napthaline [sic] in 

 medicine and as an insecticide," was read for 

 Dr. Riley, in his absence, by Dr. W : S. Bar- 

 nard. It was in the main abstracted from 

 Dr. Ernst Fischer's --Das naphtalin in der 

 heilkunde und in der landwirthschaft .... 

 1SS3." Naphthalin [Ck.Hj] was first made in 

 iSoS. Nothing was said by Dr. Riley of its 

 use in medicine. Its use as a substitute for 

 camphor, for killing museum pests, was sug- 

 gested in 1S40. Placed in insect boxes, it kills 

 acari and psoci, but not other museum pests. 

 Experiments were made with it against Phyl- 

 loxera -citifoliae in 1S72. Fischer began ex- 



