12 



RANGE INVESTIGATIONS IN ARIZONA. 



vvill serve to emphasize the fact that it was the northern-grown seed 

 which germinated to best advantage upon the range plots during the 

 cool weather of spring: 



Record of germination upon range plots, spring of 1901. 



"For information as to the location of the plots and methods of culture, see Bui. No. 4, Bureau of 

 Plant Industry, 1901. 



Shortly after completing the seeding on the range plots, a small 

 grass garden was established on the university campus in rather a pro- 

 tected place behind the main building. This was designed for purely 

 scientific study, but it served nevertheless as a very instructive check 

 upon the species planted on the range. The planting was done here 

 on the 13th and 11th of February and the plots were irrigated by 

 well w^ater when they needed it. The saltbushes were planted in a 

 plot by themselves at some distance from the building, and conse- 

 quentl}^ in a more exposed place. 



The following tabular statement lists all the plants sown upon the 

 range which germinated under irrigation and did not do so under the 

 natural mesa conditions. The two tables, therefore, include all species, 

 the seed of which w^as of i^nowii origin, planted on the mesa, which 

 germinated in the spring: but the last table does not give a complete 

 record of the grass-garden gei'minations. for there were many things 

 planted in the grass garden that were not at hand in sufficient quan- 

 tit}^ to be. sown upon the mesa: 



