FIELD CROPS. 331 



violet seed color are correlated with large wide leaves, and yellow seed 

 color and light flower color with long narrow leaves. Foreign pollinizatiou 

 occurs but not to the extent of overthrowing inheritance in pure lines. Fer- 

 tilization by bumble bees could be detected abundantly among flowers of the 

 sJime plant and between flowers in the same plat, but seldom between flowers 

 of different plats. A retarded development occurretl in plants that were white 

 flowered, in some cases as much as four w-eeks later than the red flowered plants. 

 The violet colored seeds averaged heavier than the yellow. 



Maize, its history, cultivation, handling, and uses, J. Bubtt-davy {London, 

 New York, Bombay, and Calcutta, lOlIf, pp. XL-\-831, pi. 1, figs. 2//5).— A very 

 complete treatise with special reference to corn production in South Africa, 

 and including chapters on importance and history, climatic requirements, geo- 

 graphical distribution, botanical characters, inheritance of characters and im- 

 provement by breeding, judging and selection for exhibition, varieties and 

 breeds, soils and manures, tillage, planting, and cultivation, diseases and pests, 

 harvesting and storage, commerce, milling, mill products, chemical composition, 

 the maize grain as food, the preservation and use of maize stover, hay, and 

 silage for stock feed, construction of modern silos, and uses of maize products 

 in the arts and manufactures. A bibliography of 430 titles is attached. 



The corn plant and seed selection, II. K. Hayes {Connecticut State Sta. Rpt. 

 1913, pt. 6, pp. 353-384, P^«- 4)-— In this paper the author gives the results of a 

 series of tests during 1912 and 1913 of the commercial value of first generation 

 crosses and a comparison of yields of shelled corn of several of the more impor- 

 tant Connecticut varieties when grown in the same season under uniform 

 conditions. 



Twenty-two varieties of yellow and white dent and yellow and white flint 

 that were used in the tests are described. Ear-to-row tests were made. Char- 

 acters which showed dominance are noted as red cob over white cob color, 

 colored pericarp over colorless pericarii, straight rows over irregular rows, 

 light tillering over hea^'y tillering, and low protein content over high protein. 

 As a variable character endosperm color is mentioned, and as intermediate char- 

 acters the number of rows, shelling yield, date of maturity, and height of plant. 



Eight crosses are noted as being advantageous crosses, producing yields rang- 

 ing from 9.2 per cent to 17 per cent higher than the better parent. Griswold 

 Early Dent X Brewer Flint gave the greatest increase, while the cross between 

 Hall Tyler Dent and Brewer Flint produced the highest absolute yield of 73 bu. 

 of crib-dried shelled corn. Tables give the yield of crib-cured corn, comparative 

 yields of first generation hybrids and their parents, tests of sweet-corn varieties 

 and crosses, inheritance of protein, inheritance of row number, percentage of 

 shrinkage, and shelling capacity. 



Good seed corn for 1913, H. D. Hughes {loica Sta. Circ. 4 {1912), pp. 3-11, 

 figs. 7). — This gives directions for selecting, gathering, and storing seed corn, 

 Avith special reference to Iowa conditions. 



Fertilizer experiment with maize {Bol. Soo. Agr. Mexicana, 38 {191Jf), No. 

 14, pp. 263-265). — The data show an increased yield over the check plat of 1,794 

 kg. of grain per hectare (1,596 lbs. per acre) by the use of 50 kg. of superphos- 

 phate, 150 kg. of potassium sulphate, and 200 kg. of ammonium sulphate. 



Moisture in maize, G. N. Blackshaw {Rhodesia Affr. Jour., 11 {1914), No. 

 S, pp. 396-398). — ^The moisture content is given of 12 samples (sacks) of corn 

 in storage, together with the atmospheric moisture, as determined in 13 periods 

 from October, 1912, to July, 1913. 



Tabulated results showed " the maximum variation in moisture recorded 

 during the period of the investigation (mean of 12 samples) was 3.72 per cent, 

 the lowest average being shown in the month of October, 1912, and the highest 



