CONTENTS. V 



Page. 



The interrelations of ants and plant lice, Mordwilko 254 



Polymorphism of ants, with abnormalities due to parasitism, Wheeler 254 



The fungus-growing ants of North A merica, Wheeler 254 



Wild bees, wasps, and ants, Saunders 254 



The book of garden pests, Pearson 255 



Practical remedies for insect pests, Lef roy 255 



Insects injurious to seeds, Bargagli 255 



The frit fly 255 



The coo ling moth or apple worm, Quaintance 255 



The woolly aphis of the pear tree, Passy 255 



The scale insects of citrus trees, Howard 255 



The San Jose scale, Surface 255 



Spraying experiments for 1907, Henderson 256 



Spraying in an off year, Denny 256 



Lime sulphur for use against San Jose scale, Phillips 256 



Dipping nursery stock in lime-sulphur wash, Parrott, Hodgkiss, and Schoene. 256 



The currant bud mite and the hazel bud mite, Macdougall 256 



Mosquito blight of tea, Hutchinson 256 



Thrips on cocoa, Ballou 257 



On the structural characters of three species of Coccidse, Newstead 257 



Notable depredations by forest insects, Hojikins 257 



Using various species of trees as trap trees for bark beetles, Sedlaczek 257 



Insects injurious to loco weeds, Chittenden 257 



The value of insect parasitism to the American farmer, Webster . 257 



Fruit fly parasites. Baker 258 



Anatomy, biology, and pathogenicity of Ixodes reduvius, Vorontzov 258 



The tsetse fly in India, Lefroy 258 



Apiculture, Chavez 258 



Bee diseases in Massachusetts, Gates 258 



FOODS — HUMAN NUTRITION. 



Changes taking place in chickens in cold storage, Pennington 258 



The grades of wheat in the Manitoba inspection division, crop of 1907 259 



The chemistry of strength of wheat flour, II, Wood 260 



Report on the manufacture and sale of song-than and ho-tieu, Sandre 261 



Hawaiian honeys 261 



Concerning coffee, Gorter 262 



Preparation of vinegar in relation to sale of food and drugs acts, Hamill 262 



Fruit juice statistics, 1907, Bomer 262 



Concerning fruit juices for the year 1907, Behre, Grosse and Thimme 262 



Fruit statistics for the year 1907, Baier and Hasse 263 



Concerning fruit juices and marmalades for the year 1907, Fischer and Alpers •263 



Fruit juice statistics for the year 1907, Sch warz and Weber 263 



Concentrated fruit juice, Rohrig 263 



Hungarian fruit juices, Halmi 263 



The detail of the enforcement of the Food and Drugs Act, Bigelow 263 



The nutrition of man, Chittenden 263 



Food and diet in the United States, Langworthy 264 



ANIMAL PRODUCTION. 



Chemical studies of growth, I. The inverting enzyms of alimentary tract, 



Mendel and Mitchell 265 



Enzyms involved in purin metabolism in the embryo, Mendel and Mitchell. . 265 



The occurence of glycogen in the embryo jiig, Mendel and Leavenworth 266 



Transformation of glycogen by enzyms of embryonic tissues, Mendel and Saiki 266 



The autolysis of embryonic tissues, Mendel and Leavenworth 267 



Purin, pentose, and cholesterol content of the egg, Mendel and Leavenworth. 267 



The catalase of animal euibryonic tissues, Mendel and Leavenworth 267 



The occurence of lipase in embryonic animal tissues, Mendel and Leavenworth 267 



Notes on the composition of embryonic tissues, Mendel and Leavenworth 267 



The effect of drinking and salting food upon body weight, Farkas 268 



Digestion experiments, Fraps 268 



Silage for fattening cattle, Carmichael 270 



Feeding experiments with molasses, Weiser and Zaitschek 270 



The nutritive value of different sorts of screenings, Tangl and Weiser 271 



