34 BULLETIN 367, U. S. DEPARTMENT OF AGRICULTURE. 
season of 1914 seemed to be very favorable, but very few trees set 
fruit. The data as to measurements are as follows: 
One tree about 1 mile nearly east of the location marked I on the map (fig. 
2), 9 feet high, with a spread of 10 feet, produced as second crop 102 pounds 
of dried beans (Pl. VIII, fig. 2). Another tree near McCleary’s house, 9 feet 
high and with a spread of about 14 feet, produced 10 pounds of dry beans as 
a first crop. - Probably 60 per cent of the trees on the reserve are as large or 
larger than the two measured. 
Erosion retarded.—The process, of leveling the land by the action 
of water, assisted by the growth of vegetation, has been going on 
ever since the stock were put out of the reserve and the plants com- 
menced to reestablish themselves. It has been carried to completion 
in some of the shallower arroyos, and the bottoms of the watercourses 
are entirely covered with plants. The larger arroyos still have well- 
marked sandy channels where nothing but coarse annual weeds grow, 
but the grasses are rounding off the banks of such channels and 
gradually diminishing their width, while in many places they pre- 
vent further erosion by growing directly in the narrow cut and 
helping to hold whatever earth may be washed in by the run-off 
CRI DXe fora): 
Seed sowing—Numerous attempts at reseeding have been made on 
this range reserve and elsewhere, the results of which have been 
reported in previous bulletins.t Most of the attempts have resulted 
negatively. Particularly is this true with reference to introduced 
species, although these have been selected with the best judgment ob- 
tainable as to the requirements of the region and the possible adap- 
tiveness of the species tried. It by no means follows that nothing 
will ever be found that will suit the conditions, and there is believed 
to be good reason for expecting that some valuable finds of this kind 
will be made in regions not yet carefully explored with these desires 
in mind. . 
The alfilaria, previously reported as seeming to take hold, has 
since been entirely crowded out by the native perennial grasses. 
Several annuals that gave some promise have also given way to the 
native perennials. 
Trials of Sudan grass were made at three different places on the 
reservation in 1914—near MacBeath’s house, near McCleary’s, and 
in the large field on the plowed ground (near H, fig. 2). The seeds 
germinated well at each place, but the young seedlings were not able 
to bear the dry weather that occurred after the first rains. Plants 
at MacBeath’s which were watered during the first dry spell made 
a good growth (about 3 feet) and produced some seed. Plants 
1See Bureau of Plant Industry bulletins as follows: No. 4, reporting results on a small 
range near Tucson; No. 67, giving later results on the same area; No. 117, treating of 
metnods and results of reseeding in general; No. 177, treating of results on this range. 
