272 EXPERIMENT STATION EECOED. 



In accounting for this abnormal case it is assumed tli;:t '• the fertilized egg 

 from which this zygote developed was a female egg, i. e., heterozygous in 

 respect of sex, [and that] at the stage of blastomeric segmentation at which 

 the division of the body into two halves was laid down, the sex factor (instead 

 of passing in equal portions to each half of the germ) divided unevenly, the 

 factor for maleness pa.ssing into the left half and the factor for feuialeness into 

 the right half of the body."' 



Studies of inheritance and evolution in Ortlioptera, I, I{. K,. Naboues 

 {Jour. Gcnctks, 3 {101-i), Xo. 3, pp. Utl-llO. pi. 1. figs. .3).— After a study of 

 more than 5,000 recorded individuals resulting from the crossing of species, the 

 inbreeding and crossing of hybrids, and the crossing of hybrids with species, 

 it is concluded that " the inheritance behavior of the color patterns in these 

 orthopterous insects shows clearly the Mendelian type of inheritance, and the 

 essential result of these experiments has been the extension of this principle to 

 a considerable number of types of a phylogenetically low group of ametabolous 

 insects."' 



Peat-moss litter ; some of its uses ; its manufacture and its future on this 

 continent, W. F. Todd [Jour. Amcr. Peat Soc. 6 (19.^3), ^^o. 4, pp. 161-lGG).— 

 This article treats of the advantages accruing from the use of peat moss as a 

 litter. 



It is stated that the moss must be in a finely iiowdered state to give the best 

 results. Among the advantages claimed for the moss are its disinfecting and 

 deodorizing properties, and its absorbing powers for all liquids and gases. It 

 is also claimed that it keeps away flies, is dustless, free from danger of fire, is 

 from 2 to 3° warmer in winter than straw bedding, is conducive to a healthy 

 growth of the hoof, and adds to the value of the manure. It is claimed that 

 1 ton of good peat moss will last as long as 2* tons of straw and that in a 

 box stall one bedding properly handled can be made to last three months. 

 Although but S.OOO tons of peat moss is used annually in this country, Great 

 Britain uses 180.000 tons. 



DAIRY PARMING— DAIRYING. 



Care, feed, and management of the dairy herd, II. H. Kildee (Iowa Sto. 

 Circ. 16 {lOl-ff), pp. 3-39, pi. 1. figs. 9).— The subjects discussed in this circular 

 are the general advantages of dairy farming, the selection of cows and bulls, 

 feeding stufl's, and soiling crops, preparing the cow for her year's work, en- 

 couraging persistency of large milk flow, influencing butter-fat production, 

 rearing the calves, feed and care required by dairy heifer.s, feed and care of 

 the dairy bull, herd records, essentials in dairy buildings, and diseases common 

 in the dairy herd. 



The effect of pituitary extract on the secretion of milk, J. Hammond 

 {Quart. Jour. Expt. PlivsioL, 6 {1913), No. 1, pp. 311-33S, figs. 2).— From the 

 results of these studies it is concluded that the "injection of pituitary extract 

 has an immediate action on milk secretion, but the effect soon passes off. Dur- 

 ing the period after injection there is a rather rapid decrease in the milk flow, 

 but this decrease is gradual and there is no sudden drop followed by increas- 

 ing secretion to normal. This indicates that the effect of the extract is not 

 muscular. The daily yield is only slightly increased as a result of injection. 

 This shows that the extract acts rather by setting free than by causing the 

 formation of the milk constituents. 



"From the composition of the milk obtained as a result of injection, to- 

 gether with other facts, it is concluded that the action of the pituitary extract 

 is not effected through rise of blood pressure. The amount of milk secreted as 



