ILLUSTRATIONS. 



PLATES. 



Page. 



Plate I. Young western yellow pines Frontispiece. 



II. Fig. 1. — The Halsey Nursey. Fig. 2. — A general view of the sand 



hills 8 



III. Fig. 1. — ^A "blow out." Fig. 2. — Sand-hill willows on moist north 



slopes 12 



IV. Fig. 1. — A small grove of hackberry. Fig. 2. — Young native western 



yellow pine 16 



V. Fig. 1. — ^Jack pine on the Bruner plantation. Fig. 2. — The first 



planting of jack pine at Halsey, at four years 20 



VI. Fig. 1. — The first planting of jack pine at Halsey, at eight years. 



Fig. 2. — ^A fine individual specimen of yellow pine 20 



VII. Fig. 1. — Making the first transplant bed of jack pine. Fig. 2. — Trans- 

 plant beds at Halsey in 1912 32 



VIII. Fig. 1. — Digging seedlings with tree digger. Fig. 2. — Digging seed- 

 lings with spades 32 



IX. Fig. 1. — The slit method of planting in furrows. Fig. 2. — Results of 



the slit planting of 1903-4 40 



X. Fig. 1. — Results of the trencher planting of 1911. Fig. 2. — Seed beds 



broadcasted in 1912 40 



XI. Fig. 1. — Black-locust seedlings, showing development in one year. 

 Fig. 2. — Hardy catalpa seedlings, showing development in one 



year 44 



XII. Fig. 1. — Two-year-old seedlings of jack pine as grown at Halsey in 

 1905. Fig. 2. — Two-year-old seedlings of jack pine as grown at 

 Halsey in 1912. Fig. 3. — Three-year-old transplants of jack pine. . 44 

 XIII. Fig. 1. — Two-year-old seedling of yellow pine as used for field plant- 

 ing in 1905. Fig. 2. — Two-year-old seedlings of yellow pine as 

 ""grown at Halsey nursery in 1912. Fig. 3. — Three-year-old trans- 

 plants of yellow pine 44 



TEXT FIGURE. 



Fig. 1. — The sand-hill regions of Nebraska and Kansas 8 



6 



