LLUSTRATIONS. 



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. 



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



