LIST OF ILLUSTRATIONS 



PLATES 



Plate I. — A peach orchard location in the Alleghany Moun- 

 tains. Elevation 1200 to 1400 feet. (Farmers' Bulletin 

 631) Frontispiece 



PAGE 



Plate II. — A peach orchard location in a foothill region in Cali- 

 fornia. (Farmers' Bulletin 631) 1 



Plate III. — Atmospheric drainage shown by smoke drifting 

 down a slope. A thin stratum of soil underlaid by a stratum 

 of rock — a poor orchard site. (Hort. and Pom. files) . . 14 



Plate IV. — An orange tree injured by a freeze and which shows 

 the stratification of the air according to temperature. (Hort. 

 and Pom. files) 28 



Plate V. — An orchard site in east central Georgia ; the topog- 

 raphy is more or less rolling ; the elevation about 500 feet. 

 (Hort. and Pom. files) 40 



Plate VI. — A peach orchard in a broad portion of the Gunnison 

 Valley in Colorado. The elevation is about 5000 feet. 

 (Hort. and Pom. files) 54 



Plate VII. — A block of ''June budded" peach trees in a Florida 

 nursery. An orchard site on the slope of a ridge in the Alle- 

 ghany Mountains. Elevation about 1500 to 2100 feet. 

 (Hort. and Pom. files) 66 



Plate VIII. — Orchard sites at different levels in the valley of the 

 North Fork of the Gunnison River in Colorado. Elevation 

 5600 to 5700 feet. (Hort. and Pom. files) .... 80 



Plate IX. — A peach tree root 19 feet long ; one on the oppo- 

 site side was 16 feet long. The roots of adjacent trees are 

 likely to crowd before the tops do. (Hort. and Pom. files) . 92 



xvii 



