January 26, 1894. 
NOTES AND NEWS. 
J. McKeen CatttTett, M.A., Pu.D., Professor of 
Experimental Psychology in Columbia College, has in 
preparation a work entitled ‘‘ A Course in Experimental 
Psychology.” Laboratory instruction in experimental psy- 
chology is now given in the leading universities of 
America, Great Britain, Germany, and France, but 
owing to the recent introduction of the subject, there is 
no text-book. A laboratory handbook on the lines which 
have been proved useful in physical and biological science 
will make instruction easier for the teacher and more 
profitable for the student, and will permit the introduc- 
tion of the subject in colleges where it could not other- 
wise be taught. It is to be published by Macmillan & Co. 
—Probably no American vegetable product is appeciated 
less than the commonest and most useful of all, namely, 
our maize or Indian corn, which Dr. John W. Harshberger, 
of the University of Pennsylvania, has made his especial 
study for the past three years. His results have just ap- 
peared in an attractive volume which forms the second 
number of the contributions from the Botanical Laboratory 
of the University. Its botanical side is now more valuable 
than its study of the history of the plant and its economic 
importance. Dr. Harshberger has carefully exhausted the 
field of philology, archeology, and history in his investi- 
gation into the origin of the plant, which has hitherto 
been so uncertain. His conclusion, based upon a series 
of well-represented convergences, is that the plant origi- 
nated in Central Mexico, between the 22nd parallel and 
the river Coatzocoalcos, and was first cultivated by the 
Nayas. From them it was spread southward along the 
entire west coast of South America, and northward over 
the great territory where it is now found. Light was thrown 
on this research by botany and meteorology, a very primi- 
tive form of maize having been found in 1890 in Mexico, 
which has afforded many points in the evolutionary history 
of the plant. Probably no part of the work would attract 
SCEDING 
a”. 
55 
more attention from the average reader than the table of 
the principal products of the maize plant, ranging from 
whiskey to soap, and from paper to baskets. Improved 
machinery is making it possible to use every part of the 
plant, and its utility, aS exhibited by Dr. Harshberger, is 
quite surprising. The economic portion of the work is a 
careful review of the conditions determining the agricul- 
tural prosperity of the nation, and an appeal for a wider 
cultivation of maize in the districts for which it is best 
fitted. , The work is accompanied by several excellent 
maps and botanical charts, and has been recognized already 
in scientific circles as an important addition to our know- 
ledge of American plants. 
—The first volume of the new series of the catalogue of 
scientific papers published by the Royal Society of London 
is now ready. Vols. Ito VI form the first series and 
cover the years 1800-1863, while the second series is from 
1864 to 1873. Vol. IX commences the third series, which 
comprises the titles of papers published or read during the 
decade 1874-1883. ‘They have been compiled on the same 
plan as the second series, and in like manner include a 
certain number of titles which were omitted in former 
volumes. The numbering of the titles of the papers of 
each author whose name does not now appear for the first 
time is consecutive with that informer volumes. The list 
by no means comprises the whole of the scientific periodi- 
cals, which at the present day are being constantly pub- 
lished in various languages, but a supplementary volume 
will probably be issued, in which will be catalogued all the 
most important papers that have appeared from 1800 to 
1883 in periodicals not hitherto indexed. Vols. X and 
XI, completing the third series, are already in press. 
—Richard L. Lull has been appointed assistant professor 
of zodlogy at the Massachusettes Agricultural College. 
Since his graduation from Rutgers Professor Lull has been 
in the employ of the Entomological Division of the United 
States Department of Agriculture at Washington, and has 
done special work in Maryland. 
BRAIN 
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FOR SALE BY ALL DRUGGISTS. 
EXCHANGES. 
[Free of charge to all, if of satisfactory character. 
Address, N. D. C. Hodges, 874 Broadway, New York.] 
WANED a oscondshand books on osteology, em 
bryology, and comparative anatomy. Send list, 
stating condition and cash price. Can offer a few good 
sets of birds’ eggs if desired. R. C. McGregor, Palo 
Alto, California. 
OR SALE.—A small collection of bird skins, con- 
sisting of 135 specimens of New England species, 
most of which are in good condition and all have full 
data. Nearly all were collected in the Connecticut valley 
in Massachusetts. Price, $10. Address, H. L. Clark, 
3922 Fifth Avenue, Pittsburgh, Penna. 
FoR SALE.—Price $150, cost originally between $300 
and $400, a microscope and following accessories : 
Acme (No. 2), stand and case lost, $75 ; Crouch, one-fifth 
collar adjustment and objective, $25; Tollcs, four-tenths 
ditto, $45; Tollcs amplifier, $12; Baush and Lamb, half 
solid eye piece, $8; Baush and’ Lamb, acromatic con- 
denser, $18; Hartnock Polarizer, $30; turn-table, $6; 
Nee camera lucida, $20. D, T, Marshall, Metuchen, 
O EXCHANGE.—Works on entomology, botany 
and palaeontology for works on Indians and ar- 
cheology. H. Justin Roddy, Millersville, Pa. 
OR SALE.—A Zertmayer new model U. S. Army 
Hospital monocular stand, cost $110. H. C. Wells, 
151 Broadway, New York. 
WANTS. 
OUBLE honor graduate in Science and Philosophy 
desires any suitable work in science, of the nature 
of teaching preferred. Address, E. A. Beckett, Trinity 
College, Toronto, Ontario. 
\ K JANTED.—Theory of the Earth, by Hutton. Prin- 
ciples of Geology, by Lyell. Manual of Geology, 
by Phillips. Lehrbuch der Geolgie und Petrefacenkunde, 
by Carl Vogt. Etudes sur le Métamorphisme, by Daubrée, 
ANTED.—A copy of Chapman’s Flora of the 
Southern United States. I have on hand for sale 
or exchange sets of the lichens of this vicinity. List 
furnished on application. Address, C. F. Maxwell, Box 
127, Dublin, Tex. 
V ANTED,.—Addresses of persons interested in ar- 
cheology. Copies of the new archzologic journal in 
exchange for lists of collectors. A collection of 10,000 
valuable objects, the results of my nine years’ exploration 
in the Mississippi Valley, for sale. Price, $7,650. Warren 
K. Moorehead, Waterloo, Indiana. 
ANTED.—Vol. Birds of the Standard or Riverside 
Nat. Hist. Preferred in parts. F. A. Lucas, 
U.S, National Museum, Washington, D. C. 
WA SG Naik I and II of Proceedings of the 
Entomological Soc. of Pha. and Vols. III to VI 
inclusive of Transactions of the American Entomological 
Soc. C. P. Gillette, Kt. Collins, Colo. 
GEOLOGIST thoroughly conversant with the geo- 
logy of the Southern States desires an engagement. 
Has complete knowledge of the economic geology of 
Iron, Coal, Lignite, as well as Clay and Kaolin. Five 
years’ experience with Geological Surveys. Address, K., 
509 West Sixth Street, Austin, Texas, 
Gro. L. EnGrisu & Co., of No. 64 East 12th Street, 
New York, announce that they have added to 
their stock of minerals, during the past six weeks, 
more choice specimens than during any similar period in 
their history. In order to make quick sales they have 
marked the prices very low, and as a further temptation 
to customers to forget the hard times, they have decided 
to allow a discount of ten per cent. on all minerals 
sold during the month of February. 
