Xll ILLUSTRATIONS 



FIG. PAGS 



39- Distribution of Crab-grass. Each dot representing a 



correspondent reporting this grass important . iS5 



40. Distribution of Carpet-grass . . . 1S8 



41. Plat of Bluestem {Agropyron occidentale) in Grass- 



garden at Washington, D. C. (United States De- 

 partment of Agriculture) iqo 



42. Seaside Blue-grass (Poa macrantha), near Astoria, 



Oregon. Protecting sand-dune from erosion by 



the wind ......... 195 



43. Typical View on Ranges of the West. Showing Ely- 



mus condensatus in low alkaline soil . 199 



44. Greensward in Public Gordens, Boston, Mass. . 212 



45. Lawn-mowers, or Turf-makers, in Druid Hill Park, 



Baltimore, Md. . . . . 213 



46. Varieties of Timothy ... ... 230 



47. Varieties of Timothy ... . 231 

 45. Improved Varieties of Brome-grass . . 233 



49. Penicillaria, or Pearl Millet . . 2^5 



50. A Spike . . . 237 



51. A Spikelet 237 



52. A Panicle ... . 239 



53. Parts of ei Single Floret 241 



54. Showing Action of Pollen . 241 



