XXXlll 



however, eight-tenths of a heavy fall of rain flowed off rapidly- 

 seaward ; while on a large plateau such as Dartmoor, and in dis- 

 tricts farther up the country, a similar downfall was retained as in 

 a sponge, stored up for future necessities of vegetation. These 

 were considerations which had not been sufficiently attended to 

 in connection with barometrical observations. — On the equability 

 of temperature in Cornwall, Dr. Barham stated that during the 

 hottest part of the summer of 1868 the thermometer at this 

 Institution never exceeded 85, whUst that at Greenwich reached 

 96 '6 in the shade. 



Mr. Dymond added that at the Government Observatory, at 

 Falmouth, the thermometer last summer never touched 80, and 

 in the winter it never fell to 32. 



Mr. Tweedy said he had been informed, as the result of the 

 experience of two brothers, that the weather in New Zealand was 

 repeated in England six months afterwards. One of the brothers 

 was a farmer, and resided in Lincolnshire, and the other in New 

 Zealand ; and the former, by attending to the advice which he 

 received from the latter as to the weather, was able to make the 

 necessary preparation. He had thus a considerable advantage 

 over his brother farmers. 



The Chairman stated that in mines worked in granite the 

 effect of rainfall was felt immediately, — in mines worked in slate, 

 only after an interval of some months. 



Dr. Barham made announcement of an intended Autumnal 

 Excursion by Members and Friends of this Institution, in connec- 

 tion probably with the Falmouth Polytechnic Society and the 

 Penzance Natural History and Antiquarian Society- and also, 

 that the completion and publication of the Bihliotlieca Cornubiensis, 

 originally projected by this Institution, had been taken in hand 

 by Mr. George Boase, of London — a brother of Mr. Charles 

 Boase, Fellow of Exeter College. 



