CONTENTS. Ill 



Page. 



Carbonic acid assimilation and chloropliyll function. Kohl 22 



The function of invertase in cane and invert sugar dates, Vinson 22 



The influence of tension on the formation of mechanical tissue, Hibbard 23 



Selection breeding of self-fertile plants, Fruwirth 23 



Concerning the self-sterility of some flowers, Jost 23 



Notes on xenia, Hunyard 23 



The occurrence of formaldehyde in plants, Xizza 24 



The recognition of glucosids in ])lants by means of emulsion, Bourquelot-_ 24 



Linamarin, a cyanogenetic glucosid of flax, Jorissen 24 



FIELD CROPS. 



.\.nnual report (jf Alaska stations for 190<) (Field croi)sJ, (ieorgeson 24 



[Report of the] i)rofessor of field husbandry, Buchanan 25 



Cereal crop ex])erinients. Shepperd and Churchill 27 



Dry farming in New Mexico, \'ernon 28 



Report of chemist [Field cro])s], Knisely 28 



[Report of the] departn)ent of chemistry, Morse 28 



Cost of filling silos. Carrier 29 



Pressing hay. Taylor 29 



Alfalfa or lucerne, Newman 29 



Beans, Corbett 29 



Beau culture. Sevey 29 



A study of Delaware seed corn, Hayward and Jackson 29 



The shrinkage of ear corn in cribs, Hume and Center 30 



Cotton. Laliere 31 



Experiments in the late planting of cotton to avoid boll weevil, Flynn 31 



Prelinnnary report on distance ex])eriments with potatoes, Stefansson 31 



The nonsaccharine sorghmns, Warburton 31 



Progress of the beet-sugar industry in the United States in 1906, Saylor__ 32 



Sugar-beet industry, Harcourt 32 



Chemistry of sugar cane and its products, Browne, jr., and Blouin_ ,32 



Tobacco, "Scherflius 34 



The regulations for the culture of tobacco in France, Murat 35 



Modern plant-breeding methods, Biffen 35 



HORTICULTURE. 



[Horticultural investigations in Alaska], Georgeson et al 35 



[Report of] the professor of horticulture, Hutt 35 



Practical treatise on horticulture for northern Africa, Guillochon 36 



Ringing herl)aceous idants. Hedrick, Taylor, and ^Yellington .37 



Ringing detrimental to tomatoes and chrysanthenunns. Hall 37 



In order to have artichokes the greater part of the year, Beziat 37 



Some attempts in the grafting of Solanums, Griffon 37 



Marketing fruit and truck crops, Hutt 38 



Orchard management, Lewis and Wicks 38 



The apple from orchard to market, Lewis 38 



The home apple orchard, McElroy 38 



Effect of wood ashes and acid phosphate on apples. Hedrick .38 



Unprofitable orchard fertilizing. Hall 39 



Evaporation of apples, Gould 39 



The cherry, Peneveyre 39 



Fertilizers on i)rune trees, Knisel.v 39 



Notes on the Tunis varieties of olives, Marcille 40 



Work at grai)e imrseries at Nicastro and Palmi, 1003-1906 40 



Selection and preparation of vine cuttings. Bioletti 40 



Concerning the bagging of grajies, Pillot ■ 40 



Tea culture, with notes on the ])roduction of indigo in Java, Detmer 41 



Notes on palms and the exotic species cultivated in Egypt, d'Abaza 41 



FORESTRY. 



Improvement of the woodlot. House 41 



Forest revenues and forest conservation, Clarke — , , 41 



