BIBLIOGRAPHY OF R. H. LOITGHRIDGE 55 



Effect of Alkali on citrus trees. Report of Experiment Station, University of 



California, 1897-389S, page 99, 19 pages. 

 Tolerance of alkali by various cultures. University of California Publications, 



Experiment Station Bulletin 133, 43 pages. 

 The gooselands of Glenn and Colusa counties. Report of Experiment Station, 



University of California, 1898-1901, 7 pages. 

 Report of the Division of Soils. 6 pages. Report of Experiment Station, 



June 30, 1903, to June 30, 1904. 

 Description and physical and chemical examination of soils from various parts 

 of California. Also report on analyses of alkali soils. Agricultural Ex- 

 periment Station Report, University of California, 1902-1903, 28 pages. 

 Report on the soils of Potter Valley, Arroyo Grande Valley, the Valley and 

 Mesa Lands of San Gorgonio Pass, and of alkali and alkali lands and 

 waters of the State. Agricultural Experiment Station Report, University 

 of California, for 1898 and 1901, part 2, 40 pages. 

 From July 1, 1910, to June 30, 1912 : 



Tolerance of eucalyptus for alkali. (United States Agricultural Experi- 

 ment Station, Bulletin number 225, October, 1911.) 

 Distribution of water in the soil in furrow irrigation. (Omitted from 

 previous report.) (United States Department of Agriculture, Office of 

 Experiment Station, Bulletin number 203, 1908.) 

 From July 1, 1912, to June 30, 1913 : 



Distribution of humus in California soils. ( Proceedings of the Society for 

 the Promotion of Agricultural Science for 1912.) 

 From July 1, 1913, to June 30, 1914 : 



Humus in California soils. University of California Agricultural Experi- 

 ment Station, Bulletin number 242, January, 1914. 

 Hilgard, E. W. : Great teacher, of agriculture and master of research, 

 California Alumni Weekly, April 18, 1914. 

 From July 1, 1914, to June 30, 1915 : 



Humus and humus-nitrogen in California soil columns. University of Cali- 

 fornia Publication, Agricultural Science, volume 1, number 8, August 25, 

 1914, pages 173-274. 

 From July 1, 1915, to June 30, 1916 : 



Life work of Eugene Waldemar Hilgard. University of California Chron- 

 icle, April, 1916. 

 Same. Science, March 31, 1916. 



MEMORIAL OF ALBERT HOMER PURDUE ^ 

 BY GEORGE H. ASHLEY 



Albert Homer Purdue, late State Geologist of Tennessee, was born 

 March 29, 1861, in Warrick County, Indiana, near Yankeetown — a small 

 village in the loess-covered hills bordering tlie Oliio River — an hour's 



Read before the Society December 27, 1917. 



Manuscript received by the Secretary of the Society February 2, 1918. 



