No. 1, May, 1921] BIBLIOGRAPHY, BIOGRAPHY, HISTORY 9 



67. Fawcett, W. William Harris, Jour. Botany 58:298-299. 1920.— A short bio- 

 graphical sketch of William Harris (1860-1920), best known for botanical exploration in 

 Jamaica. — K. M. Wiegand. 



68. Ferdinandsen, C. F. K01pin Ravn. Nordisk Jordbrugsforskning [K0benhavn] 

 1920: 137-142. Portrait. 1920.— An account of the life and work of Professor Ravn (1873- 

 1920) by his successor. — Ernst Gram. 



69. Ravn, F. K0lpin. Experiments in plant culture in Denmark, Scottish Jour. Agric. 

 3 : 207-214. 1920. — There are 8 state experimental stations dealing with agricultural prob- 

 lems and 3 with horticultural problems. Plant improvement has made remarkable progress 

 especially in root crops and forage plants. New strains originated by institutions and indi- 

 viduals are tested in open competition by the state experiment station and the results 

 determine the market demand for the seed. — H. V. Harlan. 



70. Ravn, F. K0lpin. Praktisk Erfaring og videnskabelig Forskning i Plantepatologiens 

 Historie. [Practical experience and scientific research in history of phytopathology.] Nat. 

 Verden [K0benhavn] 4:302-316. 1920.— A demonstration of cooperation in the develop- 

 ment of seed disinfection, protectional spraying, frost control, and report service. — Ernst 

 Gram. 



71. Rosin, Joseph. Arthur Meyer. Jour. Amer. Pharm. Assoc. 9: 851. Portrait. 1920. 

 — A brief sketch of the life and botanical activities of Arthur Meyer. — Anton Hogstad, Jr. 



72. Salisbury, E. J. [Rev. of: Bower, F. O. Joseph Dalton Hooker. 62 p. Society 

 for Promoting Christian Knowledge: London, 1919.] Sci. Prog. [London] 14:692. 1920. 



73. Stevens, F. L. Changes of a decade in plant pathology. [Abstract.] Phytopath. 

 10: 65. 1920. 



74. Troost, D. Overzicht van de in ons land verbouwde tarwerassen. [Review of culti- 

 vated wheat races in our country.] Cultura 32:226-244. 1920.— The occurrence of wheat 

 varieties in the Netherlands is chronologically divided into the periods 1806-40, 1840-65, 

 1865-1900, and after 1900. Polish wheat (Triticum polonicum) was well known at the begin- 

 ning of the nineteenth century. In 1826 in the province of Sealand, Russian was grown for the 

 first time, and in 1834 came Giant, also known as Syrian wheat (T. turgidum). In 1835 the 

 price of wheat declined in Friesland and Groningen, consequently wheat raising diminished, 

 but with higher prices in 1839 more wheat was grown. Red wheat then became more common, 

 and Zeeuwsche (Sealand) wheat came into favor. In 1840 the Whittington was introduced, 

 originally found in Switzerland by Whittington. Chiddam was grown from about 1850, and 

 Zeeuwsche wheat was more largely cultivated. From 1865 to 1900 many English varieties were 

 introduced, such as Squarehead, Prolific, Rough Chaff, Essex, Victoria, and others, most being 

 of excellent quality though some were not sufficiently resistant to frost. A variety of Polish 

 wheat has been raised since 1870, and the Dikkop (thick-head), discovered in a field with 

 English wheat in 1865, is still to be found. In 1886 reciprocal crosses were made by Broekema 

 between Zeeuwsche and Squarehead, from which originated Duivendal and Spijk, both of 

 good quality. Mansholt obtained the Fletumer wheat, which because of its hardiness was of 

 much value in the northern province of Groningen. In 1889 Broekema again crossed Square- 

 head with Zeeuwsche, obtaining an excellent strain, which in 1901 was called Wilhelmina, 

 at present the leading variety. Other good varieties of late years are Millioen and 

 Imperial, from which was derived the improved strain Imperial II a. — /. C. Th. Uphof. 



75. Warner, Marjorie F. Bibliographical Notes, LXXXII. The dates of Rheede's 

 "Hortus Malabaricus." Jour. Botany 58: 291-292. 1920.— The date of part 4 is shown to be 

 1683 instead of 1673. The diversity in title pages of the various volumes of this work, and 

 even between corresponding volumes of different sets is noted, and readers are requested to 

 make public information which supports any date earlier than 1678 for the first volume, — 

 K. M. Wiegand. 



76. Whetzel, H. H. Institute for plant protection. Sci. Amer. Monthly 2: 174-175. 1920. 



