bn 
Reports and Proceedings—Geological Society of London. 569 
7 
K. A. Zittei’s third paper on Fossil Sponges ; Richard von Drasche’s two Geologi- 
cal Journeys through the Island of Niphon, Japan; H. B. Geinitz, on two new 
Cretaceous Plants; E. Dunker, the Temperature in Bore-hole No. 1 at Sperenberg ; 
and A. Hilger’s Notes on the Chemical Laboratory of the University of Erlangen, 
“ panel papers, besides the usual complement of letters and bibliographical lists 
of abstracts. 
The third and fourth Nos. for 1879 (in one), with the new editors, 
contain— 
Val. von Miller, on the Bathrological Place of the younger Paleozoic System of 
Djoulfa in Armenia; Hans H. Reusch on the Working of the Sea on the west coast 
of Norway (translated by R. Baldauf); W. C. Williamson and E. Weiss, on 
Sphenophyllum, Asterophyllites, and Calamites, their relation one to another; R. 
von Drasche, on Paleozoic Beds in Kamtschatka and Luzon; K. von Seebach, 
Foyaite and the Sierra de Monchique ; F. Klocke, on the Optical Structure of Ice ; 
Otto Luedecke, on Reinite, a new wolfram-iron mineral, from Japan; F. M. Stapff, 
the Mechanics of Faults; J. Hirschwald, the Microscopie Goniometer for measuring 
crystals with dull facets; A. von Koenen, the Culm Fauna of Herborn. 
The fifth, sixth, and seven Nos. (in one) have :— 
L. von Werveke, on Limburgite; A. von Lasaulz, the Sulphur Districts of Sicily ; 
C. Klein, Mineralogical Notes ; J. Hirschwald, measurings by the Microgoniometer ; 
A. Streng, Fireblende and Rittingerite. 
Nos. 8 and 9 (in one) contain of original papers the following :— 
A. Lésch, on Lime-iron-garnet (Demantoid), from Lyssertsk in the Ural; F, M. 
Stapff, on Faults (continued) ; L. van Werveke, on the rocks of the Island Palma ; 
F. Wohler, on the native Iron of Greenland; S. M. Badcock, on the Celestine 
from the Muschelkalk of Jiihnde, near Gottingen; and E. Cohen, on the Eclogite 
from the Diamond Mines of Jagersfontein, Orange Freestate, South Africa ; Obituary 
of Bernard von Cotta, by A. St. 
Letters addressed to the various editors on the subjects of their 
special departments, and as usual often rich with interesting and 
suggestive facts and notions, together with extracts and abstracts of 
papers on mineralogy, geology, and paleontology, with lists of new 
books and periodicals, complete the parts, as heretofore, but with 
rather different arrangement. De Beds 
He POnRTS AWD ROCHA DILINGrsS. 
GroLogicoaL Soctety or Lonpon. 
November 3, 1880.—Robert Etheridge, Esq., F.R.S., President, 
in the Chair. 
The President announced that the original portrait of Dr. William 
Smith, painted by M. Fourau in the year 1838, had been presented 
to the Society by William Smith, Esq., of Cheltenham. 
The following communications were read :— 
1. “On the Serpentine and Associated Rocks of Anglesey, with a 
Note on the so-called Serpentine of Porthdinlleyn (Caernarvonshire).” 
By Prof. T. G. Bonney, M.A., F.R.S., Sec. G.S. 
Several patches of serpentine are indicated on the Geological 
Survey map on the western side of Anglesey, near Tre Valley station, 
and a considerable one on Holyhead island near Rhoscolyn. These 
really include three very distinct varieties of rocks: (1) compact 
green schistose rocks, (2) gabbro, (3) true serpentine. The author 
