ANEROID BAROMETER. H 



Journey from Derby. — Reading at Town Hall, Derby. . . . 2,100 



,, Leicester Museum 2,185 



Difference 85 



2)100 



Average difference . . 8!)ft. 



Now, tbe tiiic difference (if tlie lieiglits of these two points, according 

 to the Ordnance Sur\-cy, is 78ft., the Leicester Museum being 237ft., and 

 the Town Hall, Derby, 159ft. above mean or half-tide sea level at 

 Liver})ool, the error in determination being 2ft. only. 



September 5th, 1877."''' Temperature 60'' F. 



Journey to Cliarnwood Forest. — Beading at Leicester Feet. 



Museum 1,725 



Reading on top of Bardon Hill. . . . 2,395 



Difference G70 



Journey from Charuwood. — Reading on top of Bardon Hill 2,400 



,, Leicester Museum . . 1,736 



Difference). . . . 661 



2)1,334 



Average difference. . . . 667ft. 



Adding this difference of 667ft. to the knovioi height ('f the Museum 

 above the sea (237ft.,) we get 904ft. as the height of Bardon Hill, while 

 the height obtained by levelling is 9U2ft. 



MARINE ZOOLOGY AT A R R A N 



BY W. E. HUGHES, ESQ., F.L.S. 



In the early autumn of 1873 upwards of twenty members of the 

 Birmingham Natiiral History and Microscopical Society ventured 

 upon a marine excursion at Teignmouth, on the south coast of Devon. 

 The weather in a somewhat rainy year proved very fine, consequently 

 dredging was pursued daily on board the yacht "Ruby," hired for the 

 purpose, and there were regular botanical and geological excursions in 

 the neighbourhood for those who were minded to go, as well as a special 

 excursion to Kent's Cavern. Upwards of a w^eek was thus passed 

 pleasurably and profitably, many interesting forms of marine life being 

 taken. On the whole the experiment gave such general satisfaction 

 that it was determined to repeat it this year (1877) on a more extended 

 scale, and in a locahty which should, as far as possible, offer a decided 

 contrast to that previously visited. The Island of Arran was selected, 

 and the results were equally satisfactory. About twenty members — 

 ladies and gentlemen — formed the party ; the arrangements were left to 

 a small Sub-Committee, and, as the number of members was sufficiently 

 large, very favourable terms were granted by the Midland Railway Com- 

 pany, and the luxiuy of a Pulhxian Sleeping Car was indulged in at a 

 inoderate expense. A small sum — about a sovereign — was contributed 

 by each member to a common fund, and thus a boat for di'edging, or a 

 carnage for land excursions, was at the service of the memibers daily 

 as they felt incUned. An adiiiirable general account of the proceedings 

 having already been given * by one whose kindly disposition and richly- 



* "Birminsliam Natural History 'Society. Exclusion to Arran." — Birmingliam 

 Dad'j rust, Muuday, Lept. lOtb, lb77. 



