No. 2, September, 1920] GENETICS 217 



1643. Seiler, J. [German rev. of : Goldschmidt, Richard. Crossing over ohne Chiasma- 

 typie? (Crossing over without chiasmatype?) Genetics 2: 82-95. 1917.] Zeitschr. indukt. 

 Abstamm. Vererb. 22: 215-216. Mar., 1920. 



1644. Semon, Richard. Uber das Schlagwort "Lamarckismus." [On the catch-word 

 "Lamarcklsm."] Zeitschr. indukt. Abstamm. Vererb. 22: 51-52. Dec, 1919. 



1645. Shamel, A. D. Origin of a new and improved French prune variety. Jour. Heredity 

 10:339-343. Frontispiece, S fig. Nov., 1919. 



1646. Shamel, A. D. A bud variation of the Le Grande Manitou dahlia. Jour. Heredity 

 10:367-368. 1 fig. Nov., 1919. 



1647. Sheppard, Hubert. Hermaphroditism in man. Anat. Rec. 18: 259-260. April 

 20, 1920. — Author's abstract of paper read before American Association of Anatomists April 

 1-3, 1920: — In 1911 Gudernatsch asserted that "hermaphroditism in the sense that separate 

 testicles and ovaries are found has not been demonstrated in man, nor even in other mam- 

 mals beyond a doubt." In so far as we are able to determine, this assertion has not been 

 questioned. We thought it worth while, in the light of this and other investigations, to report 

 a study of the anatomical structures of an extreme case of hermaphroditism which came to 

 the dissecting room. — The testicles in this individual were located in the scrotum and the ova- 

 ries in the pelvic cavity. The tissue from both organs proved to be normal in structure under 

 a close microscopic examination. The broad ligament was thicker and wider than is usually 

 found in a female subject, due to the fact that the uterus was a little lower in the pelvis than 

 normal. The uterus measured about 5 cm. in length, 4 cm. in width and 2 cm. in thickness. 

 A muscular wall, as well as a lumen which opened downward into the vagina, could be easily 

 seen by both microscopic and macroscopic examinations. The oviduct took a normal course 

 to the lateral angle of the uterus. A microscopic examination of the tube showed a lumen 

 with walls containing the usual tunics. The cervix of the uterus passed into the inferior 

 portion of the prostate about one-half inch below the urethra. The position of the organs 

 might be described as follows: The bladder was superior and anterior to the uterus, with the 

 prostate almost below the bladder, and a little anterior to the inferior portion of the uterus. 

 Both are connected to the prostate, the urethra entering the prostatic substance near its 

 superior anterior surface, the cervix of the uterus occupying the lower two-thirds. The cervix 

 of the uterus held almost the exact position of the utriculus prostaticus of the male. — 

 Externally the genitalia featured decidedly as a male. However, upon a closer examination of 

 the region, and palpation of the organs, certain irregularities could be observed. The penis 

 was small with a urethral orifice three-fourths as large as the organ itself. The opening grad- 

 ually increased in size until it terminated at the cervix of the uterus. This portion of the 

 urethra was in all respects a vagina attached to the inferior surface of the penis. Both the 

 lumen of the uterus and the urethra opened directly into the vaginal opening. — It has been 

 found in all true cases of hermaphroditism that there is always a sharp distinction between 

 the male and female genital tissue and never an indefined mixing of the two elements (true 

 ovitestis). In this unusual case we found the same phenomenon with a wuder separation of 

 the two kinds of tissue, the testes and ovaries in the exact position of a normal individual. — 

 Hubert Sheppard. 



1648. Shull, George H. A third duplication of genetic factors in shepherd's-purse. 

 Science 51 : 590. June 11, 1920. — -Author's abstract of paper read before American Philosophi- 

 cal Society, April 23, 1920. — In the third generation of a cross between a wild biotype of the 

 common shepherd's-purse (Bursa btirsa-pastoris) from Wales and Heeger's shepherd's-purse 

 (B. Heegeri) there appeared a small number of plants of unique type, having a more coriaceous 

 texture than in the plants of either of the two original strains involved in the cross. This new 

 type has been designated coriacea. It differs from the common form, not only in texture, 

 but the lobing of the leaf is reduced and simplified and the angles of the lobes are almost 

 spinescent. The proportion of coriacea to the typical sibs in this F 3 family was 12:187 or 



