302 BOTANICAL GAZETTE [APRIL 
Agriculture. It is impossible here to summarize the report, itself a summary. 
Certainly every American who understands the past success and future plans of 
this bureau must feel proud that our government is thus leading the world in 
turning applied botany, based upon researches by a capable staff, to the produc- 
tion of wealth and comfort for the people. Asa mere matter of dollars and cents, 
any one of a dozen or more discoveries made or practically applied by this bureau 
recently will add to the annual income from our fields and gardens more than 
the whole bureau has cost from its beginning. The report is a concise and 
clear showing that will interest all and will surprise those who have not followed 
closely the recent developments.—C. R. B. 
Tue Butrerin fromthe laboratories of natural history of the State Univer- 
sity of Iowa contains in its last issue (Vol. V, no. 4) two botanical papers on the 
local flora, viz., The flora of the St. Peter sandstone in Winnesheik Co., Iowa, by 
Professor B. SHimEK: and The Discomycetes of eastern Iowa, by FRED J. SEAVER. 
In the latter, out of nearly one hundred species collected in the state, about fifty 
are described and illustrated in twenty-five plates, the remainder being reserved 
for further study. No new species are described.—C. R 
THE SECOND ANNUAL ISSUE of the volume on Botany of the International 
Catalogue of Scientific Literature3 was published in December last, the manuscript 
having been completed in March 1904. ‘There is no occasion to explain the 
scope and quality of this publication, for it has already been extensively rev iewed,* 
and the opinions of botanists concerning it have become well settle d.—J. M. 
J. Perkrns’ has issued the third fascicle of contributions to the flora of the 
Philippines. The collaborators are as follows: C. DE CANDOLLE, Piperaceae, 
J. Perkins, Rutaceae; O. WARBURG, Ulmaceae, Moraceae, Urticaceae, Balano- 
phoraceae, Artciodochintess: Magnoliaceae, Thymelaeaceae, Ericaceae, and Ficus; 
E. B. Copetanp, Ferns (38 n. spp. and Christopteris, n. gen.).—J. M- ©- 
NOTES FOR STUDENTS. 
RECENT STUDIES IN HYBRIDIZATION.—The literature of Mendelian inherit- 
ance has been enriched by the appearance of several important recent papers: 
SCHERMAK © gives an account of further studies in the hybridization of peas, 
stocks (Matthiola), beans, etc., which have given him so many noteworthy results 
reported in earlier contributions. The great amount of interesting detail makes 
= review impossible in a short note. ‘Kreuzungsnova,” which have 
3 International Catalogue of Scientific Literature. M. Botany. 2d annual issve 
8vo. pp. 1111. London: Harrison & Sons, 45 St. Martin’s Lane. 1904- sad 
4 Bot. GAZETTE 34:455. 
5 S Je b saices ae ae Philippinae. Fasc. Til. pp. 155-7 -* 
Leipzig: poe Borntraeger. 1905. M5. 
© TscHERMAK, E., Weitere Kicusanennedien an Erbsen, Leukojen und Bohnen 
Zeits. Landw. Versuchsw. 7: 533-638. 1904. 
