20 PRESIDENTS ADDRESS. 
Zoology and Botany, Mr. Albany Hancock has been engaged 
in studying the anatomy of the Cephalopoda, and the 
result of his investigations will be to add greatly to our 
knowledge of the circulatory and aquiferous systems of these 
animals. Mr. Alder’s attention during the last year has been 
chiefly directed to the study of the Tunicata, the British species 
of which he has engaged to catalogue and describe for the British 
Museum. Three or four new species have been found on this 
coast, and the lists will probably be increased by further search. 
Last summer he also obtained two new Zoophytes at Cullercoats, 
and had the opportunity of tracing the development of some of 
the rarer species hitherto imperfectly understood. Amongst the 
new species is a small Hydractynia, producing free Medusoids. He 
has also described in the Annals of Natural History for February, 
1860, a new Zoophyte (Campanularia fastigiata), and two new 
Echinoderms ( Comatula sarsii and Phascolosoma radiata), dredged 
by Mr. Barlee at the Shetland Islands. The Rev. A. M.Norman 
is engaged in preparing a Catalogue of the Crustacea of North- 
umberland and Durham for the Society’s “ Transactions,” in 
which he would be glad of assistance from local observers. He 
has added another species to the British Fauna of Fresh-water 
Mollusca, viz., Physa acuta, and has described in the Annals of 
Natural History for February, 1861, an Echinoderm from Ireland, 
for which he has formed a new genus. Dr. Donkin has described 
in the “ Quarterly Microscopical Journal” for January, 1861, 
15 new species of Diatomacee from the Northumberland coast, 
and he is engaged in preparing a general catalogue of the local 
species for the Club. Mr. Geo. Hodge has been closely engaged 
in Microscopical investigations amongst the smaller Marine Crus- 
tacea and Radiata, with especial reference to their metamorphoses. 
Mr. R. Howse has taken Acmea testudinalis at Hartlepool, whichis 
interesting as another fact to prove the southern migration of this 
shell, which has been traced from point to point in successive parts 
of the Society’s “ Transactions.” Messrs Bold and Perkins have, 
in spite of the unfavourable season, made several additions to our 
local Coleopterous fauna, and the Rev. H. B. Tristram has pub- 
lished an interesting account of his Travels in the Sahara and 
