110 GENETICS [Bot. Absts., Vol. IV, 



plants with some stamens transformed into carpels resulted. Species crosses of Digitalis, 

 and of Gladiolus, were also noteworthy. — In dogs, (Canis), tailless and short-tailed strains 

 were crossed with normals, and all the abnormals were found to be heterozygous. Length 

 of paws, and blackness of tongue, were also considered. — A bibliography of the work at 

 Verrieres is added. — John Belling. 



678. Michael, Ellis L. Concerning application of the probable error in cases of extremely 

 asymmetrical frequency curves. Science 51: 89-91. Jan. 23, 1920. — This paper suggests that 

 in cases of extremely asymmetrical frequency curves, the proper method of treatment is to 

 find some function of the measurements whose frequency distribution is Gaussian, and apply 

 the probable-error calculation to that function. In the illustration used (successive bacterial 

 counts from muscle emulsion made from five muscles of pollution area) the scale used is 

 changed from the frequency of the actual counts to the frequency of the logarithms of the 

 actual counts. This change makes the asymmetrical frequency Gaussian. The calculations 

 are made on this frequency and the results when complete converted back to the actual 

 figures of the experiment. — John W. Gowen. 



679. Miller, Edwin C. Development of the pistillate spikelets and fertilization in Zea 

 mays L. Jour. Agric. Res. 18: 255-266. PI. 19-82. Dec. 1, 1919.— Fertilization occurs 26 to 

 28 hours after pollination. Although many pollen tubes started down a style at one time only 

 one reached the ovary cavity in 100 observations. — D. F. Jones. 



680. Milliken, C. S. Handling of select citrus buds. California Citrograph 3:73. 

 1 diagram. Feb., 191S. — Describes work of Fruit Growers' Supply Company in furnishing 

 bud wood from trees of known high productiveness. — Howard B. Frost. 



681. Milliken, C. S. Importance of having best type of citrus trees. California Citro- 

 graph 3:277. Sept., 1918. — Popular, brief. 



682. Milliken, C. S. Importance of using reliable citrus trees in new plantings. Cali- 

 fornia Citrograph 4: 158, 171. Apr., 1919. — Popular. 



6S3. Miyoshi, Man abu. Uber der Erhaltung einer neuen wildwachsenden hangenden 

 Varietat des Kastanienbaumes als Naturdenkmal. [Concerning a new wild chestnut with weep- 

 ing branches and its preservation as a natural monument.] Bot. Mag. Tokyo 33 : 1S5-1S8. 

 1 -photo. Sept., 1919.— See Bot. Absts. 4, Entry 452. 



684. Moeli, C. Uber Vererbung psychischer Anomalien. [On inheritance of psychic 

 anomalies.] Deutsche med. Wochenschr. 1918. 



685. Molyneux, E. Fasciation not inherent. Gard. Chron. 64:210. 1 fig. Nov. 23, 

 1918. — In a number of cases wheat plants bearing a "double" (bifurcated) terminal spike 

 shows no perpetuation of this abnormality in succeeding generations. The illustration given 

 indicates that a fasciation is not involved. — T. H. Goodspeed. 



686. Mottier, D. M. Chondriosomes and the primordia of the chloroplasts and leuco- 

 plasts. Ann. Botany 32:91-114. 1 pi. Jan., 1918.— Chondriosomes and plastids morpho- 

 logically unrelated. Exact function of former unknown. Both are permanent organs and 

 concerned in hereditary transmission; "they must occur in the cytoplasm of both gametes 

 in all plants." Even anthocyanins may be inherited through some such extra-nuclear 

 mechanism. — Merle C. Coxdler. 



687. Nagai, Isaburo. The correlation in the differentiation of sex in the fern prothallis. 

 Bot. Mag. Tokyo 33: 157-170. Tab. I-IV. 1919.— See Bot. Absts. 4, Entry 1562. 



688. Noack, Konbad. [German rev. of: Bally, Walter. Die Godronschen Bastrade 

 zwischen Aegilops- und Triticumarten. Vererbung und zytologie. (The Godronian hybrids 



