TH?: SMALL TNCLOST^RE. 



18 



Record of germmai'ion njnm irrigated rjrnan garden, s^pring of 1901. 



nThese are numbers of plots in the grass garden and have no reference to previously published 

 niimbers. 



''This was incorrectly called li.polystachija in Bui. No. 4 of the Bureau of Plant Industry in referring 

 to plots 26, 31, and 70. Througliout that publication these two species were not segregated. 



By the middle of May there wa.s nothing which had been phinteil 

 upon the range plots alive, except a little L'lppia Tepen-s., which hud 

 been placed upon one of the enibankinent.s thrown up acro.ss an old 

 roadway, and a few .scattered plants of shad .scale {Atriplex canescens) 

 on area F. Everything- else had succumbed to the drought which 

 invariably prevails in this region from March to June. 



During the rainy season of the following August several plants 

 which were .sown in the winter germinated and made .some growth. 

 The most con.spicuous of these was ^{otcii\iQ'shQan{Phaseo/u.'i retufius), 

 which germinated and grew beautifully through August, but died out 

 completely by the middle of September. Andropogon mccharoides and 

 Chloris elegans made a very small growth, but nothing commensurate 

 with the quantity of seed sown and the labor involved. 



During the autumn of 1903 there was nothing to show for the plant- 

 ings of 1901 except a few stray plants of Andropogon saccharoides in 

 the southeastern corner of the field, a similar growth of shad scale on 

 portions of area F, and a small strip of Lippia vepens on one of the 

 embankments. None of these, however, gave promise of success. 



In June, 1901, the writer di.scontinued his connection with the Ari- 

 zona Experiment Station to accept his present position in the l"^nited 

 States Department of Agriculture. The work upon the small tract 

 w^as placed under the immediate supervision of Prof. .1. .1. Thornbur, 

 of that station. During the summer of 190:^ c-ooperative arrange- 

 ments were entered into by the Department of Agriculture and the 

 Arizona station whereby the investigations on the small tract were to 

 be continued and those upon the large tract, discussed later, were to 

 be instituted. Since that time Professor Thornbur has had charge of 

 the work upon the small tract and the writer that upon the large tract. 



