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a # 
Miscellaneous Intelligence. 445 
Vail a fuller examination, however, it may remain under Helicoma.’ 
observes also, that the nu 0 of Bosc’s species (p. 350), should 
Sa been stated at “ eight or or ten.” 
5. Yield of Lead in Great Prion, (Mem. Geol. Surv. Great Brit- 
ain, li, p. 730).—The following table gives the amount of lead ore and 
lead —. _ the mines of the United Kingdom, for the years 1845, 
1846, 1 
ead ore. 
~ ate = 6. 1847. 1845. «1846. 1847. 
ni Tons. ‘Tons. ons. | ‘Tons. 8. 
England,. . . | 86479 | 54468 | 59,6148]| 38401 | 36,718 073 
Wales, _ ~. «| 16,412 | 14,978 | 18,1474) 11,0143" 10,0274 12,204 
Scotland, + 1 ''193 1 "161 | 9951 901, 942} 7.380. 
Treland,, . ov ae pene 1,641 1,189 8555 811 
IsleofMan, . . | 2959) 2316] 2575 |. 1,523°| 1.663) 1, 
ce 3 . . |} 78,267 | 74,564 | 83,747 | of) 695 | 50,1615 = 4 ai 
ty Rp tiedengtioory the enquiries that the produce of encrahaniatial lead 
from the ore throughout the e kingdom averages about 68 per cent. ; and 
that 7 to 8 ounces of silver i is the mvetnge spront7 at present. procured 
from the ton of lead. 
6. British ——— (Atheneum J-this Association for the Ad- 
vancement of Science, met at Swansea.on Wednesday, the 9th of Au- 
gust. At8 P, M. an eet was delivered ‘by. the _ of the 
meeting, the Marquis of ‘Northampton. The summary of 
ings is as follows: On Wednesday, the General Commit : 
—On Thursday, business began in all the ‘Sections, the Ethnological 
sub-section forming the only exception ; and ‘in the ii oa Dr. Percy 
delivered a discourse on smelting iron, in the Baptist chapel.—On Fri- 
day, all the sections again’ met except the Ethnological ; during the 
afternoon ‘there were sailing matches and boat races 3 and after the 
ordinary, Mr. Vivian threw open his grounds, but the wet nee inter- 
fered with the general enjoyment ofi the Sections. On Saturday there 
was no meeting of the Sections ; and a very large party ne t of aveight 
in the morning to visit the iron-works of es 4 see = other points of 
interest in the Swansea valley. Another. party made an excursion to 
the bone caves and cliffs of Gower; while a third, consisting of Lord 
feaesicas Sit Philip Egerton, Sir H. De la Beo se Prof: Owen, 
orbes, Dr. Carpenter, Mr. Bowerbank, Liew 
went with Mr. M’ Andrew in his ya 
ington at their head, made 
h to Pennard Casts 
less energetic visited the : 
mainder of the day in Mr. cBlewellya’ s grounds of 
a boat impelled by the ‘electrical current was at’ 
lakes. In the evening there was a promenade a at tthe 
pr attended, i 
n Monday, there was business in 
lectured on microscopic structures in 
Tuesday, the Sections met; and the av 
cipal strangers. In the evening there was g t 
