No. 1, July, 1920] GENETICS 101 



forms appeared as vulgare novelties. In certain oi - Igare types, forms more or 



less speltlike appeared. In this way speltlike forms with awn from parents without 



awns. Through a cross between smooth yellow vulgai in I spelt, it was proven thai hairi- 

 ness and the gray-brown oolor of spelt depended on a single determiner, while in the oase of 

 the vulgare forms the results wen: different. In the forms beterozygotic in reference to the 

 group types, the hairiness and the color were in each instance produced in aooor 1 moe with 

 the spike typo. In the segregation the characters associated together maintained the same 

 ratio. The ratio:} hairy gray-brown to 1 smooth yellow appeared in these spelt-mdgare 

 crosses. The other crosses are reported in a somewhat similar manner. — Author maintains 

 that his observations justify the later classification of the 7 groups of wheat into two groups; 

 viz., an Emmer series including dicoccum, durum, polonicum, and turgidum, and a Dinkel 

 series including spclta, vulgare, and compaction. — W. E. Bryan. 



623. Kalt, B. Die Hintertuxergerste. Ein Anbau- und Ziichtungsversuch. [The Hin- 

 tertux barley. An experiment in culture and breeding.] Kiihn-Archiv 7: 217-2-10. 191S. 



624. Kalt, B., and A. Scrt/lz. Uber Riickschlagsindividuen mit Spelzweizeneigenschaf- 

 ten bei Nacktweizen der Emmerreihe des Weizens. [Concerning the occurrence of atavism in 

 wheat — in the naked wheat of the Emmer type occur individuals with characters of the Spelt 

 type.] Ber. Deutsch. Bot. Ges. 36: 669-671. 1918. — The naked wheats have probably arisen 

 from the Spelt type and consequently one might expect the occasional appearance of individ- 

 uals with the Spelt characters. That this is actually the case is shown in the ne w Elephant 

 variety — a Triticum turgidum type — where individuals appear which exhibit the brittleness 

 of head-axis, a typical character of the Emmer wheat. — Ernst Artschwager. 



625. Kammbrer, Paul. Vererbung erzwungener Formveranderungen. 1. Die Brunft- 

 schwiele des Alytes -Mannchen aus "Wassereiern." [Inheritance of induced changes of form. 

 1. The callosities of the Alytes males from "water-eggs."] Arch. Entwicklungsmech. Org. 

 45: 323-370. PI. 10-11. 1919. — Alytes obstetricans was forced to lay its eggs in water by 

 raising the temperature at the breeding time to between 25° to 30°C. At first, most of the eggs 

 died; but in later generations more and more of the young survived. After six generations, 

 disease carried off the progeny. The numbers were small. In the third generation distinct 

 rough pigmented callosities were first noted on the manus of males during the breeding season. 

 In following generations specimens were obtained with more distinct callosities, even extend- 

 ing to the forearm. Some which were tested kept this character for several generations with- 

 out being subjected to heat at the breeding period. Only a trace of these transitory callosi- 

 ties was found in the wild male Alytes. Some of the females of the "water-egg" line even 

 showed as much in the breeding season as did these wild males. Animals which had shown 

 the callosities did not lose them after castration. — John Belling. 



626. Keilin, D., and G. H. F. Nuttall. Hermaphroditism and other abnormalities in 

 Pediculus humanus. Parasitology 2 : 279-32S. PI. 12-17, 28 fig. Oct., 1919.— About one hun- 

 dred and fifty hermaphroditic lice from wild and laboratory cultures were examined in detail 

 and yielded a complete series of forms ranging from the male type to the female type, the co- 

 existing characters of both sexes being present to a varying degree. The development of the 

 gonads were not necessarily accompanied by the appropriate secondary sexual organs. The 

 anatomical structure of the hermaphrodites indicated that they may have been either sex- 

 ually non-functional or functional. Wild races contained from 0.2 to 8 per cent of hermaph- 

 rodites while crosses between P. capitis and P. corporis yielded in some experiments over 

 20 per cent. In the crossing experiments a great diminution in the proportion of females to 

 males was observed. — D. D. Whitney. 



627. Kihara, Hitoshi. tlber cytologische Studien bei einigen Getreidearten. [Cytologi- 

 cal studies of some cereal crosses.] Bot. Mag. Tokyo 33 : 21-38. 21 text fig. 1919.— Root 

 tips, anthers, and ovaries were treated for 1-2 minutes in Carnoy's solution with chloroform 

 and then in Flemming's solution for 24 hours. The hybrids were produced by crossings 



