CHARACTERS OF GALL ORGANISMS FROM OTHER SOURCES. 155 



(c) Mil]c decidedly bluer than check, no reduction; in some a slight 

 amount of whey on top of the fluid milk, in others no separation: 

 Alfalfa, old chestnut, newest daisy, beet, parsnip, newest rose, new 

 chestnut, grape, willow, turnip No. 2, salsify, Newport poplar No. 1- 

 This group might be spht again as follows: 



{a') Narrow pinkish rims and moderate pellicle over a uniformly 

 deep blue fluid, and a white precipitate: Old chestnut, new chestnut, 

 parsnip. 



Q)') The same, but with a ])inkish-yellow precipitate and no pellicle: 

 Beet. 



(cO Heavy whitish pellicle, moderate white precipitate, uniformly 

 dulled blue fluid: New rose. 



{d') Very wide white rim (1 cm.), heavy pellicle, and scanty white 

 precipitate: Alfalfa. 



{e') Uniform deep blue with blue rims: Newest daisy, grape, sal- 

 sify, willow, Newport poplar No. 1, turnip No. 2. 



August 19, 1910. 



Group a. — No change except in the color of the milk, which is now 

 a muddy tan color, with the exception of Flats poplar, which is 

 still gray. 



Group h. — No change. 



Group c. — {a') Parsnip — no -change; old and new chestnut — 

 barely a trace of pink in the rims; no other change. (&') Beet — no 

 change, {c') New rose — no change, {d') Alfalfa — no change, {e') 

 No change. 



August 26, 1910. 



Group a. — All (including Flats poplar — see August 1 9, above) are 

 a dirty brown (approximately broccoli brown, Ridgway). Milk 

 fluid, no separation of whey. 



Group h. — Quince: clot is being dissolved. Only slightest trace of 

 color except in the rim, which is pink. Old apple — no change. 

 Newport poplar No. 2 — casein is being thrown down; very little 

 reduction. Arbutus — milk coagulated, no separation of whey; no 

 reduction. 



Group c. — {a') Parsnip: no change (milk fluid, bluer than check; no 

 separation of whey). New chestnut— no pink in the rim, otherwise 

 unchanged. Milk fluid, bluer than check; no separation of whey. 

 Old chestnut — milk fluid, no separation of whey; but reduction is 

 taking place. Milk approximately Ridgway's lavender gray. 



Q)') Beet — milk fluid, deep blue; no separation of whey. Pinkish 

 yellow rim and precipitate. 



(c') New rose — like old chestnut in color, but slightly bluer; 

 otherwise as on August 13. 



213 



