302 Botanisches Centralblatt. 



Oliver, G. W. 1911. The Seedling-Inarch and Nurse-Plant Methods 

 of Propagation. (Bull. 202, Bur. Plant Ind. Dep. Agr. Wash., D. C. 

 1911. 43 pp. 15 f. 9 pl.) 



Parker, T. B. and T. J. W. Broom. 1911. Cooperative Experi- 

 ments and Demonstrations. — Suggestions as to Soillmprovement, 

 Cultivation of Com, Cotton and the Legumes. (Bull. Dep. Agr. 

 Raleigh, N. C. XXXII. p. 1—28.) 



Parsons, T. S. 1911. Potatoes. (Bull. 86, Agr. Exp. Stat. Laramie, 

 Wyo. 1911. 20 pp. 4 f.) 



Pearl, R. and F. M. Surface. 1910. Experiments in breeding 

 SweetCorn. (Bull. 183, Agr. Exp.Stat.Orono,Me.l913.p.247-316.15f.) 



Penny, C. L. and M. B. MacDonald 1910. Crimson Clover. Its 

 rate of gaining Nitrogen. (Bull. 86, Agr. Exp. Stat. Newark, Del. 



1910. 42 pp. 2. f.) 



Pickett, B. S. 1911. Fruit Bud Formation. (Bull. 153, Agr. Exp. 



Stat. Durham, N. H. 1911. 40 pp. 3 f.) 

 Pugsley. C. W. 1911. Alfalfa Management. (Bull. 120, Agr. Exp. 



Stat. Lincoln, Neb. 1911. 14 pp.) 

 Raven, W. F. 1910. Bean Production. (Bull. 259, Agr. Exp. Stat. 



East Lansing, Mich. 1910. p. 85-98.) 

 Reed, C. A. 1912. The Pecan (Hicoria pecan). Culture, propagation, 



planting, varieties, etc. (Bull. Dep. Agric. Washington 1912. 8°. 



58 pp. 25 f.) 

 Reimer, F. C. 1910. Fig Culture in North Carolina. (Bull. 208, 



North Carolina Agr. Exp. Stat. West Raleigh, N. C. 1910. p. 185— 



208. 13 f.) 

 Reimer, F. C. and L. R. Detjen. 1910. Self-Sterility of the Scup- 



pernong and other Muscadine Grapes. (Bull. 209, North Carolina 



Agr. Exp. Stat. West Raleigh, N. C. 1910. 24 pp. 13 f.) 

 Richter, R. 1912. Pomologie nouvelle. (Paris 1912. 110 pp. 5 pl.) 

 Roberts, G. and E. J. Kinney. 1911. Wheat. (Bull. 155, Agr. Exp. 



Stat. Lexington, Ky. 1911. 60 pp.) 

 Roeding, F. W. 1910. Irrigation of Sugar Beets. (Farmers' Bull. 



392, U. S. Dep. Agr. Wash., D. C. 1910. 52 pp. 14 f.) 

 Salmon, C, 1911. Winter Wheat in Western South Dakota. (Circ. 



79, Bur. Plant Ind. Dep. Agr. Wash., D. C. 1911. 10 pp.) 

 Saunders, C. E. 1910. Grain, Fodder Com, Field Roots and Pota- 

 toes. (Bull. 66, Centr. Exp. Farm Ottawa, Canada. 1910. 64 pp.) 

 Saunders, W. 1911. Progress in Breeding of Hardy Apples for the 



Canadian Northwest. (Bull. 68, Cent. Exp. Farm Ottawa, Canada. 



1911. 14 pp. 3 f.) 



Schaffnit, E. 1912. Die Herstellung und Vorbereitung des Saatgutes. 



(Fühlings landw. Ztg. 1912. p. 665—682.) 

 Schaffnit, E. 1912, Mängel des Saatgutes aus der diesjährigen Halm- 

 fruchternte. (111. landw. Ztg. XXXII. 3 pp.) 

 Schmitz, N. 1910. Wheat- Variety Tests and Diseases. (Bull. 147, 



Agr. Exp. Stat. College Park, Md. 1910. p. 33—46.) 

 Scott, J. M. 1911. Japanese Cane for Forage. [Saccharum, sp.]. 



(Bull. 105, Agr. Exp. Stat. Gainesville, Fla. 1911. p. 53—68. f. 4-8.) 

 Scott, J. M. 1910. The VelvetBean. [Stizolobium deeringianum Bort.] 



(Bull. 102, Agr. Exp. Stat. Gainesville, Fla. 1910. p. 43— 58. f. 8— 11.) 

 Shamel, A. D. 1911. A Study of the Improvement of Citrus Fruits 



through Bud Selection. (Circ. 77, Bur. Plant Ind. Dep. Agr. Wash., 



D. C. 1911. 20 pp. 5 f.) 

 Shanahan, J. D. 1910. American Export Com (Maize) in Europe. 



(Circ. 55, Bur. Plant Ind. U. S. Dep. Agr. Wash., D. C. 1910. 42 p. 7 f.) 



