PLANT HYBRIDIZATION BEFORE MENDEL 285 



hybrids. Gardeners' Chronicle, 3rd. ser. 9:753-4. June 

 20, 1891. 



(d) Anatomical structure of hybrids. Journal of Horticul- 

 ture, Cottage Gardener, and Home Farmer, 3rd. ser. 

 23:86. July 30, 1891. Also, report of meeting of June 

 21 of the Royal Horticultural Society, entitled, "Micro- 

 scopical structure of hybrids." 



(e) A comparison of the minute structure of plant hybrids 

 with that of their parents, and its bearing on biological 

 problems. Transactions of the Royal Society of Edin- 

 burgh, 37; pt. 1, (No. 14) 1892, pp. 203-86, 8 plates. 



(f) Hybridization, its benefits and results to ornamental 

 horticulture. American Florist, 9:81-4, August 31, 1893. 

 (Brief comment on p. 82 on the intermediacy of hy- 

 brids.) Gardeners' Chronicle, 3rd. ser. 14:361-2; 395-6, 

 September 23 and 30, 1893. (Reprint of the article in 

 the American Florist, above.) 



(g) Observations of some hybrids between Drosera filifor- 

 mis and D. intermedia. University of Pennsylvania Con- 

 tributions, 2:87-99. 1899. 



7. Spillman, W. J. 



Quantitative studies on the transmission of parental char- 

 acters of hybrid offspring. Proc. 15th Ann. Convention of 

 the Ass'n of American Agricultural Colleges and Experiment 

 Stations, held at Washington, D.C., November 12-14, 1901. 

 U.S. Dept. of Agriculture, Office of Experiment Stations, 

 Bulletin No. 115. pp. 88-98. 



8. Wilson^ John H. 



The structure of certain new hybrids (Passiflora^ Albuca, 

 Ribes^ Begonia, etc.) Journal of the Royal Horticultural So- 

 ciety, 24:146-80, 1900. See also: Report, Hybrid Conference, 

 London, 1899 ; and Publications of the University of Penn- 

 sylvania, New Series, No. 5, Contributions from the Botani- 

 cal Laboratory. Vol. II, No. 1. 1898. 



