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Dec 30 1860

Cress-seed with roots above 1 inch long - Sol. of C. of Amm. 2 gr to 1 oz seemed at tip. of root exclusively to produce many spheres, seen with 2/3 Oz & middle E.P. which were not before visible.

(I could not see any such effect with root of canary seed.

Jan 1 2 spec after 22° in do presented similar appearances excepting that, 2 or 3 spheres in most of lateral Hairs.

Jan 1 I have great doubt from comparing spec placed on C. of Amm & another in water whether C. of Amm does anything)

Jan 3d. I kept some Duck-weed for 24° in above of C. of Ammonia. I cd perceive no great change - Perhaps cold weather.

Plain water produced some aggregation in lower

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cells & curved Hair at tip of roots of Hop-Clover. I left germinating roots of Hop-clover in C. of Am for nearly 2 hours could perceive no effect.