54 



few for any final conclusions, nnd the details loo numerous to present 

 in a brief sketch here, there have ncxertheles.'s tieen some very interest- 

 ing results from tlic use of Ifrtili/ers which is rradilv shown bv a few 

 lantern slides. Here is. for instance^ a view of a fertilized and an 

 unfertilized section of one of our experiments in Georgia. The views 

 were obtained in the fall, and one could tell at a u,l nice, not only that 

 the unfertilized trees were not /is large, but also ciuite strikingly that 

 they had nearly lost all of their foliage, whereas the trees on the fer- 

 tilized section were still in full foliage, thus j^resenting a very strong 

 contrast. The effect of fertilizers on the foliaue is shown also in a 

 series of slides of represent'itive trees, from one of our experiments 

 in Louisiana, likewise taken in the fall. The first tree had not been 

 fertilized, the second had been fertilized with phosphate and the 

 third with potash. The one fertilized with phosphate appeared slightly 

 larger, but it can again be observed that all three trees were, at the 

 time the picture was taken, nearly three-fourths defoliated. The next 

 two trees from the same experiment, fertilied respectively with a nitro- 

 genous fertilizer and with a complete fertilizer, and photographed at 

 the same time, show the influence of these fertilizers strikingly in 

 that they are still in complete foliage, as well as showing a more 

 vigorous growth. Three slides of fertilized and unfertilized trees 

 from still different experiments all show the fuller foliage and better 

 branching of the fertilized trees, especially those fertilized with the 

 nitrogenous fertilizers or the complete fertilizers. 



The yields of these trees cannot here be taken up but, in general, 

 these fertilized trees came into bearing earlier and have yielded double 

 and treble the number of nuts produced by the unfertilized trees. 



(In conclusion, there was shown a slide of the yield of nuts from 

 an experimental tract of a commercial orchard of about 20 acres, in 

 which the yield from a fertilized acre was compared with the yield 

 from an unfertilized acre. It was noted that the unfertilized acre g-ave 

 a yield of approximately two barrels, whereas the fertilized acre gave 

 an increase of two bushel baskets more than the unfertilized.) 



Dr. W. E. Saft'ord, Botanist, Bureau of Plant Industry, then 

 spoke on the Use of Nuts by tlie Aboriginal Americans. 



Dk. S.afforu: ]\Iy interest in nuts has been confined almost 

 entirely to those of American origin. For a good many years. I have 

 been studying the plants, and plant products, utilized for food, and 



