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Psyche 4:31, 1883.

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Murch-April iSS3.j PSYCHE. 31
PSYCHE.
CAMBRIDGE, MASS., MAR.:APR. 1883.
---
Conmtiicatiom, exchanges and editors' copies should be addressed to EDITORS OF PSYCHE, Cam- Mge, Mass. Communications for publicatiovi in PSYCHE must bepropedy authe~zt;coie& and no ano-ny. mons articles =ill bepublished.
Editors find contributors are only responsible for the ftafements made in their ozm communications. Works on subjects not related to entomology will not he revimoed in PSYCI~E.
For rates of subscription o?zd of advertising, see ad- vertisixg columns.
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- ~ -~ -~ -
FALSE DATES.
So far as our examination has gone, we
have not learned that is was the custom of any scientific periodical to publish the actual date of its issue in a systematic manner, before such a practice was adopted in PSYCHE. Whether PSYCHE was or was not a pioneer
in this direction is of little importance com- pared with the importance of the principle thus illustrated. We are pleased to notice the adoption of this practice in one and another of our contemporaries. PSYCHE
has practised it from the outset.
With the concluding numero of its last
finished volume (December 1882), the Canal ilium eiitomologl'r.t began to print, on the nnmero, the date of printing of each numero of its issue. How much better it would be to announce, in one numero, the date of
actual issue of the preceding! Accidents frequently occur, after a signature. or a numero, is partly or even wholly printed, to delay its issue beyond the expected date, and the signatures cannot be, in that case, thrown away, or their date changed, with- out loss or trouble which will rarely be in- CLII-I-ed. No reliance. in mostcases. therefore can be placed on such an announcement.
As an announcement of date of printing
and not of date of issue. it has no value in a question of priority. The announcement, if intended as a statement of the date of issue, is positively false, in that it is made in advance of issue; however strictly the fact inay be made subsequently to coincide with the announcement. In case, however, the announccinent is made after the event, it has a positive value.
It is rarely the case that so excellent an opportunity of illustrating the evils of the practice of putting the date on the signature to which it refers is given, as in the state- ments of dates of issue which are appended to the last two volumes of the Proceedings of the Boston society of natural history. It . is probable that a similar discrepancy be- tween the pre-announced and the actual
dates of issue occurs in the issue of the pro- ceedings of many other societies, but in general there is no means of detecting the discrepancy. Even here it is not until two or three years after the issue of the first sig- natures before the true date of issue is made known. Meanwhile, what misunderstandings might arise, either controversially or pri- vatsly, from the erroneous impression con- veyed by the dates printed on the signatures! It will be noticed, in the lists given below, especially from volume 20 of the Proceedings, in how many cases the announcement is
false, and how great, in many cases, is the discrepancy.
Dates of ;ictu?il publication of the Proceedings of the Boston society of natural history, v. 20 and 21, :IS compurcd with the dates printed on the signrttnres. Volume 20.
Announced Actual date Discrepancy
date. of issue. in dilys.
p. 1-32, Dec:.
p. 33-48, [zz] Jim.
p. 4yS0, Jan.
11. S1.96, Feb.
p. 97.112, Mch.
p. 113.1~8, [4] Apr.
p. 129.144, Apr.
p. 145.160, M:q
p. 161.176, Jnly
p. 177-192, Sept.
p. 193-203, \@I OC~.
11. 309-224, Oct.
187s [ I Jan. 1S79].
1879.
[ 5 Feb.] 1879.
[ I Mch.] 1879.
[ 4 A~r.1 1879.
1879.
[IS June] 1879.
[IS June] IS;^.
[ 4 Aug.] 1879.
[24 Oct.1 1879.
1879.
20 Nov.] 1879.
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PSYCHE.
Announced Actual date Discrepancy
date. of issue. in days.
[zo] Nov.
Dec.
Feb.
Jan.
Mch.
May
Aq.
Oct.
Nov.
May
June
[231 July
JU~Y
Sept.
1879.
1879 [ 5 Feb. ISSO].
1880 [17 Dec. 18791.
[ 5 Feb.] 1880.
[ 7 Apr.] 1880.
20 Oct.] 1880.
[20 Oct.] 1880.
[ 3 Nov.] ISSO.
ISSO [ 5 Jan. 18811.
[as June] 1881.
[23 J~ly] 18s1.
1SS1.
[ 5 Aug.] 1881.
[ 5 Nov.] 1881.
Volume 21.
11. 1-16, [23] July
11. 17-32, July
p. 33-48, [16] Aug.
p. 49 So, Aug.
p. 81-112, Sept.
p. 113-128, Oct.
p. 129-144, [21] NOV.
p. 145-160, [2S] Nov.
p. 161-176, [IS] Dec.
p. 177-208, Dec.
p. 209-240, [301 J:m.
p. 241-256, [7] Feb.
p. 257-272, Feb.
p. 273 288,
[I 01 Mc~.
p. zSg.304, [IS] Apr.
1). 305-3209 [I91 May
1)- 321-3369 [27] m'ly
1)- 337-3529 [IS] J~11le
p. 353-368, June
P. 369-3% [171 July
p. 385-400, [6] Sept.
p. 401-416, [la] Oct.
p. 417-432, OC~.
P. 433-4483 Jan.
p. 449-464, r211 Feb.
p. 465-475, 21 Mch.
1881.
16 Aug.] 1881.
1SSl.
5 Nov.] 1831.
[ 5 Nov.] ISSI.
f 5 Nov.] 1881.
1SS1.
1881.
18S1.
ISSI [ 7Jan. 18821.
1882.
I 882 [ i 8821.
[4 Mcli.] 1S82.
1882.
1882.
1SS2.
1882.
1SS2.
f6 July] 1SS2.
1882.
18S2.
1882.
[3 Nov.] 18Sz.
fs Peh.] 1883.
18S3.
1SS3.
We commend it to the attention
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of the
editors, not only of the periodicals men- tioned, but also of others, whether it would not be well to adopt the principle illustrated in PSYCHE, of-giving, at the earliest oppor- tunity, in a systematic manner, the dates of issue of parts already issued, and omitting dates of prospective issue.
B: P. M
PROCEEDINGS OF SOCIETIES.
ACADEMY OF NATURAL SCIENCES OF
PHILADELPHIA.
8 AUG. 1882. -The Rev. H : C. McCook
described the raids of Formica sangziinea upon 3'. fzisca -raids in which the black slaves assist their red masters. Reds and blacks shared the labor of raising the young. The nests of F. fusca, conspicuous in places where there were no red ants, were hard to find where the latter were common. An at- tempt to introduce the red ant into a city yard failed through the attacks of the com- mon pavement ant, Tetraivzo~/ztwz caes${turn. 3 OCT. 1882 -Dr. Skinner remarked that
the organ of offence of the larva of Pafilio, usually believed to be solid, is really hollow. rolled in and out upon itself.
10 OCT. 1882. -Rev. H : C. McCook pre-
sented a paper upon the snares of orb-
weaving spiders, and described four species of Efieira.
31 OCT. 1882. - Rev. H : C. McCook drew
attention to the use of ants as insecticides by the Chinese, and stated his belief that as no American species lived on trees, the proba- bilities were against their usefulness for a similar purpose. ,
7 Nov. 1882. -Rev. H : C. McCook pre-
sented a paper on "Ants as beneficial insec- ticides" and advocated the importation of the ant used in China for the protection of
orange trees.
14 Nov. 1882.-Mr. Thomas Meehan stated
that the nest of the wood pewee [conto$us virens] is held together by cobwebs.
5 DEC. 1882. -Dr. Horn remarked upon
the singular distribution of the apterous water-beetle Ain$hizoa, one species of which inhabits California, a second the district northward of that state as far as Vancouver's island, while a third has been found high up in the mountains of Thibet.
23 JAN. 1883. -Dr. Skinner stated that
Argy/z?zis cybele, instead of carefully deposi- ting its eggs, as is usual with butterflies, dropped them from a distance upon the her- bage.-Complied from Ainer. naf., April 1883. v. 17, 13. 462 - 466.




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