Table IV.— Exp. 55. Seedlings of B. pendulinus in Beakers of Fine Sand, sown July 23. Infected the 3rd Leaf on August 18 with Spores of Exp. 50 (B. pendulums). 



Distilled water only. 



No. of 

 plates. 



No. in- 

 fected. 



Source of 

 infecting 

 spores. 



50, a 



50, a 

 50, c 

 50, d 

 50, e 

 50,/ 

 50, g 

 50, h 

 50, i 

 50, k 



50, p 

 50, j 

 50, » 



50, o 

 50, I 

 50, m 



Gerinina,. 

 tion of 

 spores. 



Good .... 



Excellent 

 Very good 



Poor 



Pair 



Very good 

 Fair 



Poor 



Very good 

 Excellent 

 Good .... 



Poor .... 

 Excellent 

 Very poor 



(Aimlil ion on Augu 



Small, but good infection 



Very small in f ection 



Mack larger infection : good spores. . . 



Similar, but younger infection 



Between b and e in degree of infection. 



Like c : good infection 



Like d, but very small infection 



Like b, Tery small infection 



Small infection, but advanced 



Small infection: spores only just ap 

 pearing 



Fairly good infection 



Small infection 



Minute traces only of successful infec 

 tions 



Ditto 



Very minute traces of infection 



Flecks only visible 



Condition on September 1st. 



Total 

 plants. 



Small, with 24— 3 leaves 



Small, 3 — 3i leaves 



Medium, 4 — 4i broader leaves 



Medium, 4 — 5 leaves 



Large, 4 — 5 leaves 



Large, 4 — 5 leaves 



Small, 4 leaves 



Small, 3 J — 4 leaves 



Medium, 4 leaves 



Fairly large, 4 — 44 leaves 



Large, 4 — 44 leaves 



Large, 4 — 5 leaves 



Small, 3— 34 leaves 



Small, 3 — 34 leaves 



Medium, 4 leaves 



Medium, 3* — 44 leaves 



No. of 

 plates with 

 pustules. 



Sizes, &c., of pustules and patcln 



Two very small patches, and two rather larger, with well 

 developed pustules. 



Very small patch of very small pustules. 



Patches and pustules large and well developed. 



Patches large and pustules fine. 



Patches and pustules but little inferior to those of d. 

 Patches and pustules large and well developed. 

 Patches small, but pustules fine and large. 

 Patches fair, and pustules large. 

 Large and well-developed patches and pustules. 

 Patches small, but pustules tine. 



Two patches large, two small: all pustules well developed. 

 One patch small, one fairly large : all pustules well developed. 

 Very small patches and minute pustules. 



Patches and pustules small, but well developed. 



Patches extremely small, with poorly developed minute 

 pustules. 



Extremely minute and poorly developed patches and pustules. 



