: SU Ks, = Ces a Sie wy on bs na 
hui W te om be ; 
hi 40 
PAVE REY MRO TRS NA we ee 
AWEab GARE NY te . ss 
(3) proceedings and prog 
notes of events connected with the scientific life of Wisebihe tins d 
semi-monthly, on the fourth and nineteenth of each month, except during the summer 
when it appears on the nineteenthonly. Volumes co ondtocalendaryears. Prompt 
publication is an essential feature; a manuscript reaching the editors on the eighth or ~ 
the twenty-fourth of the month will ordinarily appear, on request from the author, in 
ewe 
the issue of the Journat for the following fourth or nineteenth, respectively. ae 8 
Manuscripts may be sent to any member of the Board of Editors; they should be 
clearly typewritten and in suitable form for printing without essential changes. The 
editors cannot undertake to do more than correct obvious minor errors. References 
should appear only as footnotes and should include year of publication. , 3 
Illustrations will be used only when necessary and will be confined to text figures 
or diagrams of simple character. The cost of producing cuts for illustrations must be 
met by the auther. ‘ “Ae 
Proof.—In order to facilitate prompt publication no proof will be sent to authors 
unless requested. lt is urged that manuscript be submitted in final form; the editors 
will exercise due care in seeing that copy is followed. nn ty 
Authors’ Copies and Reprints.—On request the author of an original article will re- 
ceive gratis ten copies of the number containing his contribution and as many additional  =—™ 
copies as he may desire at ten cents each. Reprints will be furnished at the following  =—— 
schedule of prices: a eM 
Copies 4 pp. 8 pp. 12 pp. 16 pp. Covere 
50 $1.50 $2.50 $3.50 $4.50 $2.75 
100 1.95 3.25 4.50 5.75 3.25 
150 2.40 4.00 5.50 7.00 3.75 hee 
200 2.85 4.75 6.50 8.25 4.25 
9563.65. 5-80) CR OBO ae ee 
Covers bearing the name of the author and title of the article, with inclusive pagi- 4 
nation and date of issue, will be furnished when ordered. Ms 
As an author will not ordinarily see proof, his request for extra copies or reprints ey ee 
should invariably be attached to the first page of his manuscript. oS 
‘The rate of Sribseription per volume i8... cescecececacececcscencacsrsseecss #6.00* 
Semi-monthly num CIB. . s Gabe svc ees 0.s\e » aie aSegimid' ds wa meth Sve ale'se @pik abuts ete e Hes . ; 
Monthly numbers.......... Ee re S! eee awed ds eke Pema <8 CK ANE Same ee 
Remittances should be made payable to ‘‘Washington Academy of Sciences,” and.) im 
addressed to the Treasurer, R. L. Faris, Coast and Geodetic Survey, Washington, D.C. 
European Agent: William Wesley & Son, 28 Essex St., Strand, London. ? 
Exchanges—The Journax does not exchange with other publications. ; Pw malt a 
Missing Numbers will be replaced without charge, provided that claim is made  - 
within thirty days after date of the following issue. ~ > SA ee 
*Volume I, however, from June 19, 1911, to December 19, 1911, will be sent for $3.00. Special rates" , ty ’ 
are given to members of scientific societies affiliated with the Academy aad 
