IV 



Index 



Protozoa, Variation, Selection and Mutation in One of 



the. 143. 

 Prune, Origin of a New and Improved French Variety. 



A. D. Shamel, 339. 

 Pupils, Differentiation of Bright, Medium, and Dull, 



172. 

 Pusch, G. Inbreeding Live Stock, 88. 



Qualities, Good, Are Correlated. Frederick Adams 

 Woods, 84. 



Rabbit Raising, 124. 



Race Mixture in Hawaii. Vaughan MacCaughev, 41. 

 Races, The Fighting Ability of Different, 29, 173. 

 Racial Limitation of Bolshevism, The. F. A. Woods, 



188. 

 Racial Origins and the Honors of War. F. A. Woods, 



332. 

 Racial Problems and World Problems, 28. 

 Records, Life, Why Should Not Cemeteries Preserve 



_ Them, 353. 

 Restricted Entry of Plants to Protect American Crops, 87. 

 Roberts, H. F. The Founders of the Art of Breeding, 99. 

 The Founders of the Art of Breeding, II, 147. 

 The Founders of the Art of Breeding, III, 229. 

 The Founders of the Art of Breeding, IV, 257. 

 Roosevelt, Theodore, The Genius of, and His Place 

 among Historic Personalities. F. A. Woods, 300. 

 Rose, New Pillar. W. Van Fleet, 136. 



Schaffner, John H. A Remarkable Bud Sport of Pan- 



danus, 376. 

 Sex and Polyembryony. J. T. Patterson, 344. 

 Sex-Ratio, A Factor Influencing the, 256. 

 Sexual Question. A Book Review, 334. 

 Shamel, A. D. A Bud Variation of Le Grande Manitou 



Dahlia, 367. 

 Origin of a New and Improved French Prune Variety, 



339. 

 Sheep-Goat Hybrid, A Supposed, 357. 

 Sires, Use of Pure-bred, 135. 

 Solanaceae Family, A Forage Plant from the. B. H. 



Hunnicutt, 185. 

 Sonneberg, Walter. Biology and Politics, 139. 

 Southworth, W. Twinning in Alfalfa, 182. 

 Strawberries, New Everbearing. W. Van Fleet, 14. 

 Sugar Beets, 13. 



Sugar Cane, Bud Variations in. Carl S. Pomeroy, 129. 

 Synthetic Production of Wild Wheat Forms. H. H. Love 



and W. T. Craig, 51. 



Teeth, 'and Hair, .^.Defect of in Cattle — Probably Hered- 

 itary. Leon J. Cole, 303. 



Terry, J. R. A Wingless Wyandotte, 175. 



Testing New Foods. David Fairchild, 17. 



Thompson, J. W. Breeding Milk Goats, 156. 



Thumb Sucking, The First Bad Habit. David Fair- 

 child, 370. 



Timothy, Breeding of, at Svalof. Hernfrid Witte, 291. 



Tobacco, An Improved Strain of Wisconsin. James 

 Johnson, 281. 



Twins. David Fairchild, 387. 



Twins, Physical Correspondence in Two Sets of Dupli- 

 cate. Harris Hawthorne Wilder, 410. 



Twins Prove the Importance of Chromosomes. Frederick 

 Adams Woods, 423. 



Twins, Resemblance and Difference in. C. H. Danforth, 

 399. 



Van Fleet, W. New Everbearing Strawberries, 14. 

 New Pillar Rose, 136. 



Variation, Selection and Mutation in One of the Pro- 

 tozoa, 143. 



Variations, The Inheritance of Continuous and Dis- 

 continuous, 191. 



War and Genetic Values. D. S. Jordan, 223. 

 War, Honors of, and Racial Origins. F. A. Woods, 332. 

 War Instinct, Democracy, and Eugenics, 254. 

 Wheat-Rye Hybrids, Fertile. H. H. Love and W. T. 



Craig, 195. 

 Whiting, P. W. Two Striking Color Variations in the 



Green Frog, 127. 

 Wild Wheat Forms, The Synthetic Production of. H. 



H. Love and W. T. Craig, 51. 

 Wilder, Harris Hawthorne. Physical Correspondence in 



Two Sets of Duplicate Twins, 410. 

 Wingless Wyandotte, A. j. R. Terry, 175. 

 Winters, A. T. Eugenics, The War Instinct and De- 

 mocracy, 254. 

 Witte, Hernfrid. Breeding Timothy at Svalof, 291. 

 Woods, Frederick Adams. Definition of Heredity — " Na- 

 ture vs. Nurture" Not a Good Expression, 426. 

 Good Qualities are Correlated, 84. 

 Portraits of Early Americans, 212. 

 Racial Limitations of Bolshevism, 188. 

 Racial Origins and the Honors of War, 332. 

 The Genius of Theodore Roosevelt and His Place 



among Historic Personalities, 300. 

 Twins Prove the Importance of Chromosomes, 423. 

 World Problems and Racial Problems, 28. 

 Wyandotte, A Wingless. J. R. Terry, 175. 



