EXTRAORDINARY PHENOMENON IN THE MEDITERRANEAN. 79 
damaged on one face it has subsequently been re-worked into its 
present exceptional form. 
Like the majority of such instruments in this country, it pro- 
bably belongs to a period when bronze was already in use for the 
smaller weapons; and the discovery of a bronze dagger with 
rivets, in a barrow in the same field, as recorded by Mr. Couch, 
tends to corroborate this view. 
XIIT.—On an Extraordinary Phenomenon in the Waters of the 
Mediterranean. By RicHarD EDMONDS, Plymouth. 
Read at the Spring Meeting, May 23, 1871. 
HE following account of this hitherto unexplained phenomenon 
was lately given to me by Mr. Mitchel Thomson, Staff Surgeon, 
R.N., a good observer, who, when his ship was stationed in the 
Mediterranean some years since, visited the spot of its occurrence 
and personally ascertained the fact. With his permission I now 
communicate it to this Institution. 
In the island of Cephalonia, near its capital and its harbour, 
there juts out into the sea a low piece of land about a furlong in 
length, tapering to a point. At this projecting poimt the sea has 
been continuously and immemorially flowing in on this small slip 
of ground and running in a channel about 25 feet broad and three 
feet deep through its entire length, until it disappears under a hill 
and never afterwards re-appears. 
On the spot where this constant influx of the sea commences, 
a mill has been erected with an undershot wheel about 20 feet in 
diameter, which is always at work by means of this fall of water. 
M 3 
