Miscellanies. 191 
od when Olivier visited Santorin, the fishermen of the island asserted 
that the bottom.of the sea had recently risen considerably between 
the island of Little Kaiméni and the Port of Thera; in fact the 
soundings did not give a greater depth than fifteen to twenty fathoms, 
where formerly the bottom could not be reached. When Colonel 
Bory and the author visited the island in 1829, they were able not 
only to confirm the truth of Olivier’s statement, but also to ascertain 
by various soundings, that the rise of the submarine land had contin- 
ued, and that at the point indicated the depth was not more than four 
fathoms and a half. In 1830, the same observers made new sound- 
ings, which enabled them to determine the form and extent of the 
mass of rock, which in less than a year had been elevated half a 
fathom. It was found to extend 800 metres from east to west, and 
500 from north to south. The submarine surface augmented grad- 
ually to the north and west, from four to 29 fathoms, while to the east 
and south this augmentation amounted to forty-five fathoms. Be- 
yond this limit, the soundings indicated in all directions a very great 
depth. Ihave lately been informed that Admiral Lalande, who, 
since 1830, has twice returned to Santorin, ascertained that the 
rock still continues to rise; and that, in September, 1835, the date 
of his last visit, the depth of water amounted to only two fathoms, 
so that a sunken reef now exists which it is dangerous for brigs to 
approach. If the rock continues to rise at the same rate, it may be 
calculated that in 1840, it will form a new island, without, however, 
those catastrophes which this phenomenon seems to presage for the 
gulf of Santorin, being a necessary consequence of the epoch of its 
appearance at the surface of the water. Since the eruptions of 1707, 
and 1712, which produced the new Kaiméni, volcanic phenomena 
have completely ceased in the gulf of Santorin, and the volcano 
seems at the present day quite extinct. Nevertheless, the rise ofa 
portion of its surface seems to demonstrate continual efforts to make 
an eruption during fifty years; and that, whenever the resistance 
shall not be strong enough to offer a sufficient obstacle, the volcano 
will again resume its activity.” —Edin. New Phil. Jour. July, 1836. 
15. Hail._—After a violent storm at Clermont, MM. Bouillet and 
Lecog found a number of hail-stones as large as hens’ eggs, and 
some others as large as those of turkeys. They were all of an 
ellipsoidal form, and seemed formed of a multitude of needles, united 
to the extremities of the great axis. They were from eight lines to 
