FIELD CHOPS. ' 741 



and friyinjr m rcinarkably liiirli yield. The soil used in this iiistaiipo was the 

 friable Laiichstt^l loam, while on an(»ther ])lat where inoculation with a sandy 

 soil from another serradella field had lieen made the yield was not materially 

 increased. 



The results are believed to favor Hiltner's view that the nodule organisms 

 may be divided into two groups, of which one includes the organisms of serra- 

 della. lupines, and .soy beans. The author further regards the work as showing 

 the clo.se relationship, if not the identity, of serradella and lui)ine organisms 

 and that these may be readily substituted the one for the other. It is stated 

 that these organisms are present in the Lauchstedt soil in forms not as yet 

 quite adai)ted to the two crojts but that such adaptation is in progress. 



Classification of brewing- barleys from a technical standpoint as well as 

 their nitrogen content (.t/(/). Sci. Agran., S. scr., J {I!)OH), /. />/>. 2:n-32S). — A 

 review is here given of the papers and discussions on this subject by Prior, 

 Hubert. Chiss. and Wahl presented at the Eighth Internal ional Congress of 

 ,\gricnltnre held at Vienna in lOdT. 



Investigations on the physical characters of barley from an anatomic- 

 physiological standpoint. II. T. T.rown i/Jschr. (Icsiim. linniir.. 30 (W07). No. 

 IS. i>. 2.',l : alts, ill Zcufhh Af/r. Chew.. 37 ( li)OH). Vo. 12, np. 3Jn-322).—Tho au- 

 thor found that the fineness of the hull is correlated with mealiness of the grain. 

 The thousand-grain weight of rough kernels was always greater than that. of 

 the smooth grain. The rough grains also had a greater volume than those of 

 the finer vari«'fies. The nitrogen content was foimd in general to increase with 

 tin- di'^rree of roiijihness in the hulls. 



The distinguishing characters of two-rowed barley varieties. J. IJRoir.r 

 {■luur. Ldiiilir., .',1! ( UtOS). Xo. 2, iij). 121-13!)). — The author di.scusses (he classi- 

 fication of two-rowed barle.v varieties by means of the scar, the smooth bas(\ 

 the l)asal ln'ard. the serrated character of the pair of nerves next to the keel 

 in the outer glume, and by means of the hxlicules. Plants of each of IG varieties 

 were examined. 



The construction of the ba.so of the kernel is considered a good factor in the 

 classification of two-rowed barleys. The smooth flat base of the grain is a 

 chara<Mer of the nutans type or the open-headed varieties, while (he other 

 forms of the base indicate the erectum type or compact-headed sorts. It is al.so 

 regarde<l as probable that the hairiness of the basal beard cm be used as a dis- 

 titiguishing character for practical purixtses. The author regards these charac- 

 ters of greater value in jiractice than for u.se in scientific work. Serrations on 

 the nerves are not considered a reliable factor, although this character may be 

 usi-d in describing a race. The difference in the form of the lodicules is looked 

 n|M)n as a definite character by which nutans and erec(um tyjies may be dis- 

 tiii^Mislicd. 



Smooth-awned barleys. K. Ukiikl {Trudid /ii/uro I'likl. Hot., I (HWS), 

 .\o. I „'. i>ii. .'iS.',). — This arti<'le is a monograph on sino()th-awne<l barleys which 

 form a much more safisf.ictory forage crop than tlie rough or sharp-awned 

 varieties. Hotanical descriptions of 1(! forms of the smooth-awned group are 

 presented. 



Enzyms in stored barley ( Wcliii.schi: lirnu., 2'i (lOOH), Xn. 39, pp, 557- 

 .'>.59). — The results of the investigations reiwrted show that 8tore<l barley con- 

 tains a diastatic enzym having (he power of liquefying starch paste and i)artly 

 tiindng the same to suuar. .\n enzym capatile of inverting sugar was also 

 foimd. These (wo enzyms are no( equally dis(ribu(ed in (he b.irley grain but 

 are cnnfiiied largely to the germ end. It is believed that the enzyms in stored 

 barley be<-ome active when germination begins. 



