No. 1, May, 1921] GENETICS 29 



215. Anonymoits. The inheritance of blindness. [Rev. of: Best, Harky. The blind: 

 their condition and the work being done for them in the United States. 20 X 15 cm., xxi + 763 

 p. Macmillan Co.: New York, 1919. (See Bot. Absts. 3, Entry 231.)] Jour. Heredity 10: 211. 

 1919. 



216. Anonymous. The genetics of the Bonavist bean. [Rev. of: Harland, S. C. Inher- 

 itance in Dolichos lablab, L. Part 1. Jour. Genetics 10: 219-226. 1920. (See Bot. Absts. 7, 

 Entry 1762.)] Gard. Chron. 69: 25. 1921. 



217. Anonymous. Rust resistance in wheat. [Rev. of: Hayes, H. K., John H. Parker, 

 AND Carl Kurtzweil. Genetics of rust resistance in crosses of varieties of Triticum vulgare 

 with varieties of T. durum and T. dicoccum. Jour. Agric. Res. 19:523-542. 6 pi. 1920.] 

 Gard. Chron. 68: 295. 1920. 



218. Anonymous. The vehicles of hereditary qualities. [Rev. of: Morgan, T. H. The 

 physical basis of heredity. 14 X 21 cm., 305 p., 117 fig. J. B. Lippincott Co.: Philadelphia 

 and London, 1919. (See Bot. Absts. 4, Entry 422.)] Nature 106: 103-105. 1920. 



219. Anthony, R. La pseudo-hermaphrodisme tubaire chez les Cetaces males. [Pseudo- 

 hermaphroditism in the male Cetaceans.] Compt. Rend. Acad. Sol. Paris 171:1398-1399. 

 1920. 



220. Arps, George F. Polydactylism and the phenomenon of regeneration. Jour. Amer. 

 Med. Assoc. 74: 873-874. 1920. — Polydactylism is not uncommon in man and has been known 

 since antiquity. In some places as at Eycaux, France, the trait has come to prevail in a com- 

 munity. In the present instance an Alabama negro soldier, 21 years old, was observed to 

 have an extra finger on the ulnar margin of each hand. The subject, whose mental age is 

 given as 10.3 years, reported that his father, brother, 5 sisters and 2 nieces all showed the 

 same trait. He also affirmed that his father had the supernumerary digits removed, since 

 which time it has "been necessary to trim them off, as they grow continuously." This 

 (unverified) statement is advanced as evidence of regeneration. — C. H. Danforih. 



221. Bally, Walter. Die Godronschen-Bastarde zwischen Aegilops- und Triticum- 

 arten. Vererbung und Zytologie. [The Godronian hybrids between species of Aegilops and 

 Triticum. Heredity and cytology.] Zeitschr. Indukt. Abstamm.- u. Vererb. 20: 177-240. 

 4 fig. 1919. — In 1854 Godron in Montpellier reported on the Fi of a hybrid, Aegilops ovata X 

 Triticum vulgare. Later he reported that he had secured from a back-cross with wheat — the 

 pollen parent of the hybrid — a fertile hybrid that remained constant and bred true in subse- 

 quent generations. This he called Aegilops speltaeformis. The author (Bally) pollinated 250 

 A. ovata flowers with Triticum vulgare pollen, and secured two Fi hybrid plants. From 80 recip- 

 rocal pollinations he secured three Fi hybrid plants. These hybrids are figured and described, 

 the two lots of Fi plants being similar. The pollen of the Fi plants was sterile, being devoid 

 of starch and otherwise not normally developed. Both wheat and Aegilops pollen also failed 

 to fertilize the flowers of the Fi plants. The cytological study revealed that T. vulgare has 8, 

 A. ovata 16, haploid chromosomes. The number of haploid chromosomes in the Fi hybrid 

 of these can sometimes be determined as 12. When more than 12 appear this excess number 

 can be explained as arising through somatic divisions of excess chromosomes of the Aegilops 

 parent remaining unpaired in the diakinesis. The difference in form of the plump Triticum 

 and the slender Aegilops chromosomes is again apparent in the reduction division of the 

 hybrid. In the mitotic division single chromosomes arising from wheat can be recognized, 

 and it can be shown that these in the course of meiosis can cause irregularities, and that 

 single cells are separated which have the chromatin in their nuclei made up exclusively from 

 that of a single parent. Another species of Aegilops, probably ventricosa (earlier thought 

 to be speltaeformis) had 6 haploid chromosomes. — C. E. Leighty. 



