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1881. Acacia lophantha

July 25' 12˚ 15' P.m. The 6 pairs of terminal leaflets on the 2 terminal pinnæ & 6 pairs on the next pinna on moderately young leaf in cool greenhouse, was sponged with water at about 96° F, so that drops wd adhere; but the surface was still a little greasy, so that water aggregated readily, but yet drops stuck well on in manner in which it wd not do on unwashed leaves. These 18 leaflets had drops on, occasionally wet & occasionally dry, & 18 similar leaves without drops; but these wd be apt to get wet when leaves slept. —

Aug 2d no effect— Drops temporary discontinued after morning of 3d till 5th. (2 days intermission)

Aug 22d. for last 2 or 3 weeks drops placed on only thrice a day — Two days ago a leaflet dropped off on opposite side & now 3 other leaflets are yellowish & will soon drop off, on which water has never rested. Hence removal of bloom, applies to all Plants

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1881 Acacia Lophantha

is injurious— I presume from drying. — With Cassia

I ceased to put on water in evening of Sept 7th —

Sept 11˚ I can see no trace of injury, whereas on the 18 leaflets thus treated; whereas 7/18 of the opposite leaflets, from which bloom was removed, turned yellow & fell off. — Bloom serves probably to prevent evaporation

Oct 10th no change no difference between the 2 sets of leaflets

Oct 28th no change

1882. Jan. 6 7 & 7th The leaflets on which water rested look not so healthy as the others. —