Article beginning on page 158.
Psyche 5:158, 1888.

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158 PSYCHE.
[February-March iSS9.
Psyche, A Journal of Entomology.
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PAYABLE IN ADVANCE.
@XPSubscriptions not discontinued are considered renewed.
$&%P Commencing with the numero for January 1883 the rate of sitbscrIp/ion is as follows: - Yearly subscription entitling the subscriber to one regular copy and, if he desires it, one copy printed on one side of thin paper (for pasting the titles of the bibliographical record on title- slips), postpaid, . . . . . . $2.
Subscription to volume 5 (1888-18go), as above, postpaid, . . . . . . . . $5
The index will only be sent to subscribers to the whole volume.
Twenty-five extra copies, withozgt change of fom, to the author of any leading article, if or- dered at the time of sending copy, . . Free. Author's extras over twenty-five in number, under above mentioned conditions, each, . 20. Separates, with changes of formÌÔactua cost of such changes in addition to above rates. J&W Scientific publications desired in excAangt. -
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Advertising Bureau (10 ~ k o e St where advertising contracts may be made for it IS NEW YORK. MANN'S REFERENCE INDEXES.
Having accumulated a very large stock of refer- ences to the literature of many subjects of knon- ledge (and especially of entomology), I will furnish references on special subjects at ten cents each. (See PSYCHE for Oct. - Dec. 1884, v. 4, p. 223). Circulars giving further details sent on demand. Washington, D. C.
PACK24KD'S ENTOMOLOGY FOR BE GIN-
NBRS.
For the use of Young Folks, Fruit-Growers, Farm- ers, and Gardeners. By A. S. Packard, M.D., Ph.D., Izmo., Illustrated. $1.75.
From the Entomologists' Monthly Magazine, Lon- don, England :-"The best of its kind in the English Language."
From S. W. Williston, Professor in Yale Univer- sity, Conneciicu;:--"It is the best thing ofthe kindin English. There is no work that I would recommend to the young student so heartily. Had I had it when I first began to feel an interest in insects it would have saved me many an error and wasted hour." From Henry G. Jesup, Professor in Dartmouth College, N.H. :-"The best introductory book we have on the subject."
From J. A. Lintner, N. Y. State Enton~ologist :- "It is admirable, so full and comprehensive. Not only will it prove of much service to beginners as introductory to the author's Guide to the Study of Insects but it will be valued by more advanced stu- dents."
From G. H. Perkins, Professor in University of Vermont :-"It cannot fail to he a great help to all boys and girls who have a leaning towards the study of insects and must stimulate in many such love for Natural History as they may have."
PACKARD'S GUIDE TO THE STUDY OF
INSECTS.
8 vo. Beautifully illustrated $5.00
HENRY HOLT & CO., NEW YORK.




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