TABLE OF CONTENTS. xi 



mental Begonias, 363 ; Fungus Inside of Fresh Eggs, 357 ; New Species of 

 Plant forming a Carbonate of Lime Incrustation, 363. 



I. AGRICULTURE AND RURAL ECONOMY (clxv) 375 



General : A Covering of Snow as a Protection against Frost, 375 ; Vien- 

 na Congress of Land and Forest Culturists, 375 ; Agricultural Period- 

 icals Abroad, 377 ; Removal of Smell from Hog-yards, 389 ; the Hooibreuk 

 System of Fruit - culture, 408; Hooibreuk Method of Fertilizing Plants, 

 409. 



The Air : Does the Free Nitrogen of the Air Contribute to the Forma- 

 tion of Nitrates in the Soil? 381. The Soil: Lithia in the Soil of Au- 

 vergne, 378 ; Does the Free Nitrogen of the Air Contribute to the Forma- 

 tion of Nitrates in the Soil? 381 ; Continued Growth of Barley on the same 

 Land, 410. 



Food for Animals : Hay-Cakes for Horses, 387 ; Effect of the Addition 

 of Fat to Raw Feed for Sheep, 387 ; Influence of Food on the Milk Produc- 

 tion of Goats, 388 ; Effect of Addition of Phosphate of Lime to Food of 

 Lambs, 390 ; Feeding Animals with Flesh Food, 390 ; Experiments of Di- 

 gestibility of Hay by Sheep, 413; Pure and Mixed Linseed Cakes, 415; 

 Meat-flour as Food for Pigs, 417. 



Manures and Fertilizers : New Guano Deposits of Peru, 383 ; Fossil 

 Phosphates of Bellegarde, 384 ; Agricultural Value of Anthracite Ashes, 

 384 ; Coignet's Process for the Preparation of Animal Matter for the Man- 

 ufacture of Fertilizers, 386 ; Poisonous Superphosphates, 412. 



Useful Animals : Introduction of Prairie Chickens into the Eastern 

 States, 391; Rearing the American Wild Turkey in France, 392; Protec- 

 tion of Rabbits in England, 396 ; Effect of Feeding on the Color of Cocoons, 

 400; Artificial Hatching of Silkworms' Eggs, 400; Introduction of the 

 Rook, 342. 



Animal Products of the Farm : Effect of Temperature on the Cream- 

 ing of Milk, 399 ; Preparation of Condensed Milk, 399 ; Removal of Burs 

 from Wool, 401 ; Economical Use of Feathers, 403. See also Domestic 

 Economy. Noxious Animals: The Best Insecticides, 392 ; Dalmatian 

 Insect-powder, 393 ; Effective Insect-powder, 393 ; New Form of Blight on 

 Forest Trees, 394 ; Extermination of Tree - beetles, etc., 394 ; Destroying 

 May-bugs, 394; Sulphide of Carbon for Phylloxera, 395; the Phylloxera 

 and its Parasites, 395 ; Phylloxera the Result, not the Cause, of the Vine 

 Disease, 396; Destructiveness of Rodents in California, 397; Rat Poison, 

 398; Destruction of Night-flying Insects, 412; Cockroach and Cricket 

 Exterminator, 449 ; Preventing Flies from Annoying Horses, 449. 



Vegetable Products : Experiments upon the Nutritive Value of Clover 

 Hay Harvested at Different Periods of Growth, 378 ; Propagation of Pota- 

 toes by Cuttings, 412; New Potato Disease, 403; Infection of Sound Pota- 

 toes by Diseased Ones, 404 ; Improved Method of Growing Potatoes, 404 ; 

 Prize for an Essay on the Potato Disease, 406 ; One Cause of the Potato 

 Disease, 408; Keeping Grapes Fresh, 413, 436; Manufacture of Mat-work 

 from the Bark of the Linden, 410; a New Forage Plant in Guatemala, 411. 

 Forestry : Rain-fall and Forests in the West Indies, 402 ; Barking Trees, 

 for Tan, with Steam. 409 ; Preservation of Wood Lands. 411. 



