EXTEACTS EKOM PROCEEDINGS, clix 



the level of the sea, which had become black and shrivelled in 

 the night of the severe frost of Tuesday, October 19. Every "Walnut 

 on the tree was in the same condition. Mr. Glaisher remarked 

 that their condition was probably due to dryness of the atmosphere 

 accompanying the frost. The temperature was usually consider- 

 ably warmer 20-50 feet above the surface. Prof. Ansted called 

 attention to the effect of wind in blackening the leaves on one 

 side, while on the unexposed side they retained their green colour. 

 Neither the walnuts nor leaves in question fell till a later period. 

 Mr. Berkeley stated that this could not be the case, unless they 

 were forced off by the wind, till a solution of continuity was caused 

 by the development of an intermediate stratum of loose cells. 



A letter from Mr. Murray was read in which he stated that the 

 insect in the Orchid shoots sent on two previous occasions was 

 undescribed, and probably from Central America, though closely 

 allied forms occur in North America. 



Dr. Masters reported on the progress of the experiments on 

 the effect of various manures on the growth of plants. As they 

 are to be renewed next year, and no trustworthy conclusions can 

 at present be formed, the publication is deferred till the experi- 

 ments are more matured. Dr. Gilbert remarked that the experi- 

 ments of the present year merely indicated what was to be done or 

 avoided next season. 



Dr. Yoelcker corroborated Dr. Gilbert as to the necessity 

 of caution in deducing inferences ; and Mr. Glaisher, stating 

 what different effects were produced by the roots of different 

 plants in raising the temperature of the soil, recommended that a 

 thermometer should be plunged in each box, care being taken that 

 the thermometers should be made out of the same pot of glass 

 and filled with the same quicksilver. 



A Report was laid on the table relative to the experiments at 

 Chiswick on the effect of grafting on different stocks. As, how- 

 ever, an amended Eeport is promised by Mr. Barron, the publica- 

 tion is for the present deferred. 



A paper by Mrs. Barber on the Cultivation of Aloes was com- 

 municated by Dr. Hooker, which will appear in the Journal, with 

 a Note relative to the Chairman's observations on two points con- 

 tained in the memoir. 



A Eeport from Mr. Moore was then read on the experiments 

 carried on at Chiswick with reference to the effect of various 

 manures on the colouring of bedding Pelargoniums, which will ap- 

 pear in the Journal. 



