81 president's address. 



neighbourhood of Norton; also the occurrence of the 



Camherwell Beauty, and the unusual abundance of the 



caterpillars of the Death's-head Moth, SpJmix Atropos^ 



in the same district." 



After spending a pleasant evening in scientific and social 



discussion, the party returned home, regretting that the season 



of the " Field Meetings" had so soon come to an end; but it was 



not so to be; for, although the usual season had terminated, 



it was determined to hold an extra meeting by the sea side; and, 



accordingly. 



The Seventh Field Meeting was held on the 22nd October, 

 when the members met on the classic ground of Marsden. This 

 being "positively the last" out-of-doors meeting of the year, and 

 the day being fine, the muster of members exceeded any we remem- 

 ber to have seen at the meetings of the Club. The party, number- 

 ing forty-one members, and many of their friends, met at South 

 Shields, and, proceeding at once to the shore, inspected the new 

 south pier, kindly accompanied by Mr. Messent, the resident 

 engineer. The beautiful and varied forms of the limestone masses 

 attracted particular attention, both here and at the Trow Eocks, 

 whence the stone is brought. To this point the party were next 

 conducted. On the sands a large quantity of sea-weed had been 

 washed up by the then recent storms, and several interesting 

 shells, corallines, holothurians, and ascidians, were picked up. 

 Amongst which Diplodonta rotundataj a bivalve shell, very rare on 

 our coast, and fine specimens of the coralline Antennaria anteumda- 

 ria, bearing a profusion of ova capsules of a brilliant orange colour, 

 deserve notice. Mr, Albany Hancock most efficiently acted as 

 guide in this department. At the Trow Rocks, Mr. Richard Howse 

 explained to the party the chief characteristics of the Permian or 

 Magnesian Limestone Rock, pointing out the various beds into 

 which it is divided, two of which, the compact and the brecci- 

 ated are here visible: the curiously irregular and heteroge- 

 neous character of the latter (the brecciated) gave rise to much 

 discussion. To Mr. J. W. Kirkby, of Sunderland, the party 

 were also indebted for much valuable geological information. 

 On the top of the limestone rests the deposit of tlie great northern 

 drift, consisting of clay interspersed with boulders of Cheviot 



