CONTENTS. ni 



AGRICULTURAL BOTANY. 



Page. 



Studies on fungi for beginners. — II, Microscopic fungi, Lindau 727 



Bacteria, yeasts, and molds in the home, Conn 727 



A laboratory guide in soil bacteriology, Lipman and Brown 728 



Fungus flora of the soil, Jensen 728 



Bacteria and other fungi in relation to the soil, Rivas 728 



Studies on Penidllium puberulvm, Alsberg and Black 729 



Some conditions influencing nitrogen fixation by aerobic organisms, Bottomley . 729 



Influence of temperature on the zoospores of Chlamydomonas, Desroche 729 



Studies in seeds and fruits, Guppy 729 



Influence of organic acids and glucose on respiration of seeds, Promsy 729 



Tannin in the seed coats of barley, Reichard 730 



Pentosans and methylpentosans in Glycine hispida and Phaseolus vulgaris, 



Miyake. 730 



The artificial nourishment of seedlings, Zaleski and Tutorski 730 



Effect of asparagin on absorption and growth in wheat. Skinner and Beattie. . . 731 



The carbohydrates and nitrogen-containing bodies in grape leaves, Deleano. . . 731 



Phosphoric acid and nitrogen in alcoholic extract of leaves, Seissl 731 



Influence of phosphates on post-mortem respiration, Zaleski and Marx 731 



Contribution to the study of circulation. Studies on the sweet potato, Groth. 731 



The stomatograph. Balls 732 



Photosynthesis and stomatal aperture. Balls 732 



Reversible changes in permeability produced by electrolytes, Osterhout 732 



The oxidases of Cytisus adami, Keeble and Armstrong 733 



Primary color factors of Lychnis and color inhibitors of Papaver rhoeas, Shull. . 733 



Cell number in the fruit of the prairie berrj^ Groth 733 



Observations concei*ning evolution, Cockaj-ne 733 



FIELD CROPS. 



[Field husbandrj'^ experiments], Howitt and Zavitz 733 



[Forage and cover crops], Minkler 736 



The seed-corn situation, Hartley 736 



Inheritance in corn, Hayes 737 



Results of cotton experiments in 1911, Cook 737 



Cotton crop of the United States, 1790-1911, Holmes 738 



Hop crop of the United States, 1790-1911, Hohnes 738 



Potato culture, Eustace 738 



Potato spraying experiments, 1902-1911, Stewart, French, and Sirrine 738 



Ten years of potato spraying. Hall 738 



A preliminary report on rice growing in the Sacramento Valley, Chambliss 738 



Rice crop of the United States, 1712-1911, Holmes 739 



Tobacco crop of the United States, 1612-1911, Holmes 739 



Tobacco report, July 1, 1912, Killebrew 739 



Growing winter wheat in Iowa, Burnett 739 



On the vitality of farm seeds, Carruthers 739 



HORTICULTURE. 



[Report on investigations in plant heredity and plant shading], Hclsted et al . . 740 



Horticultural information 742 



Vegetable growing in Alabama, Williams and Conolly 742 



The Fi heredity of size, shape, and number in tomato fruits, Groth 742 



Orchard irrigation studies in the Rogue River Valley, Ivewis, Kraus, and Rees. 743 



Cover crops for Michigan orchards and vineyards, Eustace 743 



The pollination question 744 



Top working apple trees, Halligan 744 



Dressings for pruning wounds of trees, Selby 744 



Recent investigations in fig culture and caprification, Rixford 744 



New method of extracting olive oil, Bioletti 744 



Experiments with citnis fruits at the Bee\alle substation. Potts 744 



The better oranges, limes, and lemons, Chavez 745 



FORESTRY. 



The Michigan vcodlot. Baker 745 



Forty years' management of woods, Tait 745 



