Oct. 1, 1919-Mar. 15, 1920 



Illustrations xiii 



Page 

 sodium-chlorid solution + 30 parts per million of calcium oxid, and (5) 

 4,000 parts per million sodium-chlorid solution + 20 parts per million of 

 calcium oxid. B. — Seedlings grown in (i) 4,000 parts per million sodium- 

 chlorid solution, (2) 4,000 parts per million sodium-chlorid solution + 15 

 parts per million of calcium oxid, (3) 4,000 parts per million sodium- 

 chlorid solution + 10 parts per million of calcium oxid, (4) 4,000 parts per 

 million sodium-chlorid solution + 2 parts per million of calcium oxid, and 

 (5) 4,000 parts per million sodium-chlorid solution + i part per million of 

 calcium oxid 356 



Treatment ok Cereal Seeds by Dry Heat 



PtATE 48. Chevalier barley plants from untreated and treated seed referred 

 to in Table III: A. — Plants from untreated seed. B. — Plants from seed 

 treated with dry heat 390 



Plate 49. A. — Basal portions of 10 representative Chevalier barley plants, 

 from untreated and treated seed, selected from the lots illustrated in Plate 

 48. B. — Representative Kubanka wheat seedlings from untreated seed 

 (6 plants at left) and treated seed (5 plants at right) referred to on p. 385- 

 386 390 



Meat Scraps versus Soybean Proteins as a Sxjpplement to Corn for 



Growing Chicks 



Plate 50. A. — Cockerel No. 43, lot 13, fed on basal ration only. B. — Pullet 

 No. 44, lot 13, fed on basal ration only. C. — Cockerel No. 54, lot 10, fed 

 on basal ration plus 5 parts meat scraps protein and 5 parts soybean 

 meal protein. D. — Pullet No. 82J lot 6, fed on basal ration plus 10 parts 

 soybean meal protein 398 



Further Studies of Sorosporella uvella, a Fungous Parasite of Noc- 



TUID LaRV^ 



Plate 51. Sorosporella uvella: A. — Infected cutworm torn open, exposing 

 the resting-spore aggregations. B. — A single resting-spore aggregation. 

 C. — A portion of a resting-spore aggregation germinating in water, showdng 

 promycelial-like germination, and conidia. D.^ — A colony of young resting 

 spores from an infected insect, showing the manner in which they repro- 

 duce. E. — Isolated mature resting spores, some of which show the rup- 

 tured walls of previously cohering spores. F. — Mattu"e resting spores ger- 

 minating in water. G. — Isaria-like fascicle of cohering conidiiferous hyphae 

 which developed when the resting spores of an infected larva were allowed 

 to germinate in a moist chamber. H. — Portion of a mature resting-spore 

 aggregation. I. — Conidia, or secondary spores. J. — Conidia, or secondary 

 spores, germinating. K.^ — Portion of a section through the body of an 

 infected cutworm which had been placed in a moist chamber to induce 

 germination of the resting spores, showing the usual type of conidiophores. 

 L. — Mature resting spore germinating in water, showing conidiophore with 

 verticillately arranged sterigmata. M. — Mature resting spores germinating 

 on nutrient agar, showing sessile sterigmata and conidia at one place and 

 young resting spores arising by budding at another place. N. — Early stages 

 in the germination of mature resting spores in w-ater. O. — Advanced stages 

 in the germination of resting spores in water. P. — Sterigmata, showing 

 method of conidial abjunction. Q. — Enlarged view of conidial germina- 

 tion. K.— Enlarged view of conidia. S. — Torula-like reproduction in 

 culture 440 



