176 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [DeC. 3, 



of the ground, from 20 to 300 feet in depth. The area overflowed 

 by lava has been estimated to be at least 200,000 acres. — Edit.] 



3. Further Notice of the Eruption of Mauna Loa. By W. 

 Miller, Esq., H.M. Consul-General for the Sandwich Islands. 



[Forwarded from the Foreign Office by order of Lord Clarendon.] 



(See the preceding communication, page 1/0.) 



4. On the Occurrence of an EARTHauAKE at Rhodes. 

 By R. Campbell, Esq., H.M. Consul at Rhodes. 



[Forwarded from the Foreign Office by order of Lord Clarendon.] 



(Abstract.) 



This communication referred to the severe shock of earthquake 

 which was felt at the Island of Rhodes on the 12th October at about 

 3 o'clock A.M. It lasted for nearly two minutes, and was accom- 

 panied with great destruction of life and property. Its first motion 

 was vertical, the second horizontal, and the third vertical. The 

 shock was severe in the adjacent islands of Halki, Scarpantos, and 

 Cassos ; and was slightly felt in the island of Symi ; it caused much 

 damage also at Marmarizza on the coast opposite. 



5. Additional Observations on the Geology q/ Bulgaria. 

 By Capt. T. A. B. Spratt, R.N., F.R.S., F.G.S. 



[Having again visited the Bulgarian coast. Captain Spratt was 

 enabled to confirm his observations on the freshwater deposits of the 

 Dobrudcha, which were read before the Society in June last. These 

 additional notices have been printed in the last number of the Journal 

 (No. 49, p. 75i &c.), in connexion with the communication to which 

 they have reference.] 



