EXPLANATION OF PLATES. 



PLATE 1. 



Short-Horned Cows. 



PLATE 2. p. 1117. 



Varieties of Wheat, with, the most destructive Ene- 

 mies. 



a, Summer or Spring Wheat. 

 6, Winter or Lammas Wheat. 



c, Egyptian Wheat. 



d, Turgid Wheat. 



e, Polish Wheat. 

 /, Spelt Wheat. 



g, One-grained Wheat. 



h, The Wheat Fly of Scotland, New Eng- 

 land, &c., the larva or worm of which destroys 

 the grain in the head or chaff. 



t, One of the Worms magnified. 



k, The Hessian Fly, which attacks the stem 

 near its root. 



/, A portion of Wheat Straw affected with 

 Rust, magnified, to show the parasitic plant or 

 fungus giving rise to the disease called Rust, 

 Blight, and Mildew. 



m, Another portion of a Diseased Stem in a 

 green state, and before the fungus is quite ripe. 



n, The small portion marked 1 (I) is still 

 more strongly magnified. 



o, p t q, r, s, t, H, Very highly magnified repre- 

 sentations of the Fungus Parasite in different 

 stages of growth and maturity. 



o, Showing it in the young state ; p, full- 

 grown ; q, two plants bursting and shedding 

 their seeds when under water in the micro- 

 scope ; r, two plants bursting in a dry place ; 

 *, apparently abortive ; t, seeds in a dry state ; 

 w, a small part of the bottom of a pore with 

 some of the parasitic fungi growing upon it. 



PLATE 3. p. 139. 



Barley, Oats, Buckwheat, and Millet. 



a, b, c, d, Varieties of Barley. 

 e, White, or Common Oat. 

 /, Siberian or Tartarian Oat 

 g, Common Buckwheat. 

 h, Tartarian Buckwheat 

 t, Emarginated Buckwheat. 

 k, German Millet. 

 I, Common Millet. 

 m, Italian Millet. 

 n, Polish Millet. 

 o, Indian Millet. 



PLATE 4. p. 1044. 

 Rice, Sugar, Tobacco, $c. 



a, Canary corn. 



b, Rice Plant. 



c, Wild Rice. 



d, Sugar Cane. 



e, Indigo Plant. 



/, Virginian Tobacco Plant. 

 g, Common Green Tobacco. 

 h, Havanna Repanda Tobacco, 

 t, Quadrivalvis Tobacco of the Rocky Moun- 

 tains. 

 k, Mana Tobacco of the Rocky Mountains. 



PLATE 5. p. 575. 



Hay-Grasses adapted to particular Soils and Situa- 

 tions. 



The first group exhibits the Tall Hay-Grasses 

 of temporary duration ; the second group, Tall 

 Hay-Grasses of permanent duration ; the third 

 group, Grasses adapted to particular soils and 

 situations. 



a, Ray or Rye-Grass (Lolium perenne), Pe- 

 rennial Darnel, Perennial Rye-Grass. 



b, Orchard Grass, or Cock's-foot (Dactylis 

 glomerata). 



c, Woolly or Creeping Soft Grass (Holcus 

 moms'). 



cc, Tall Oat-like Soft Grass, Andes Grass 

 (Holcus avenaceus). 



d, Meadow Barley-Grass (Hordeum pratense). 

 dd, Meadow, or Fertile Fescue (Festuca pra- 



tensis). 



e, Tall, or Infertile Fescue (Festuca elatior). 



f, Spiked, or Darnel Fescue Grass (Festuca 

 loliacea). 



g, Meadow Foxtail (Alopecurus pratensis). ' 

 h, Great, or Smooth-stalked Meadow Grass, 



Spear-Grass (Poa pratensis). 



i, Rough-stalked Meadow Grass (Poa tri- 

 vialis). 



fr, Timothy, or Meadow Cat's-tail (Phleum 

 pratense). 



I, Floating Fescue (Festuca fluitans). 



m, Water Meadow Grass (Poa aquatica). 



n, Florin (Jlgrostis stolonifera~). 



PLATE 6. p. 576. 



Grasses. 



The first group exhibits the Early Pasture 

 Grasses ; the second and third groups Pasture 



