Apr. i-sept. 15. 1921 Illustrations xv 



Page 



3. Graph showing dry matter in kernels of Manchuria barley from normal and 



clipped spikes 449 



4. Graph showing total ash in kernels of Manchuria barley from normal and 



clipped spikes 450 



5. Graph showing total nitrogen in kernels of Manchuria barley from normal 



and clipped spikes 451 



6. Graph showing water in kernels of Manchuria barley from normal and 



clipped spikes 451 



7. Graph showing growth in length, lateral diameter, and dorsoventral diam- 



eter of kernels of Hannchen barley in normal and clipped spikes 463 



8. Graph showing wet weight of kernels of Hannchen barley from normal and 



clipped spikes 464 



9. Graph showing dry matter in kernels of Hannchen barley from normal and 



clipped spikes 465 



10. Graph showing percentage of ash in the kernels, rachises, paleae, and awns 



of normal spikes of Hannchen barley and in the kernels, rachises, and 



paleae of clipped spikes 467 



^i. Graph showing total nitrogen in kernels of Hannchen barley from normal 



and clipped spikes 468 



12. Graph showing water in kernels of Hannchen barley from normal and 



clipped spikes 469 



13. Graph showing relation of length of awn to weight of clipped kernels and 



undipped spikelets on a 2-rowed barley gro\vn at Arlington Farm, Va. . 470 



Investigations in the; Ripening and Storage of Bartlett Pears 



Text Figures 



1. Sugars in Bartlett pears from Sacramento, Calif 484 



2. Sugars in Bartlett pears from Suisun, Calif 485 



3. Sugars in Bartlett pears from Medford, Greg 486 



4. Sugars in Bartlett pears from Yakima, Wash 487 



5. Acids in Bartlett pears from Sacramento, Calif 490 



6. Acids in Bartlett pears from Suisun, Calif 491 



7. Acids in Bartlett pears from Medford, Greg 491 



8. Acids in Bartlett pears from Yakima, Wash 492 



Further Data on the Orange-Rusts of Rubus 



Plates 



D. I. — Infected black raspberry leaf covered with the caeomas of Gymnoconia 

 inlerstitialis . 2. — Blackberry leaf infected with the short-cycled 



orange-rust 512 



92. Manner of germination of the spores of the two orange-rusts 512 



93. Short-cycled orange-rust 512 



94. Gymnoconia interstitialis 512 



Mosaic Disease of Corn 



Plates 



95. Mosaic disease of com 522 



96. Mosaic disease of com : Effect of early infection on the ear 522 



