378 Notices of Memoirs. 



(2) That it is not altogether easy to regard the limestones as 

 altered sediments. 



(3) That whatever their origin they have actually existed ia 

 a state " akin to fusion," and as far as their present characters are 

 concerned, are contemporaneous with the charnockite series. 



(4) That limestones and the charnockite series have suffered but 

 little from deforming earth-movements since their final solidification. 



1. The International Geological Congress. — The next Session 

 of this Congress will be held in Yienna from the 20th to 27th August, 

 1903. The Austrian geologists have appointed a committee of 

 organization, which has just issued its first circular. The President 

 is Dr. E. Tietze ; the general secretary. Professor C. Diener ; and the 

 secretaries, Messrs. F. Teller, G. Geyer, and A. von Bohm. The 

 circular contains a list of the excursions which it is proposed to 

 arrange in connection with the Congress. The following are to 

 take place before the Session : — 1. Paleozoic region of Central 

 Bohemia. 2. Hot Springs and eruptive districts in the north of 

 Bohemia ; and the surroundings of Briinn in Moravia. 3. Galicia, 

 beginning with the coal district of Ostrau and the neighbourhood 

 of Krakau and Wieliczka, then dividing into two sections, one of 

 which visits the petroleum beds, and the other the peaks of the 

 Carpathians and the Tatra Mountain. 4. Salzkammergufc. 5. Styria. 

 The following are to be after the Session : — 6. Dolomites of the 

 Tyrol. 7. Basin of the Adige in Tyrol. 8. Western region 

 of theHohe Tauern (Zillerthal Alps). 9. Central region of Hohe 

 Tauern (Venetian Alps). 10. Predazzo. 11. The Carniolan and 

 Julian Alps. 12. Glacial region of the Austrian Alps. 13. Bosnia 

 and Dalmatia. There is also an invitation from the Geological 

 Society of Hungary, which includes a visit to Buda-Pesth and the 

 lower course of the Danube (Cataracts and Iron Gate). 



2. Illustrations oe Volcanic Phenomena. — There has been 

 arranged at the British Museum a temporary exhibition to 

 illustrate the recent volcanic eruptions in the West Indies, and 

 their phenomena. Within about a fortnight of the eruptions 

 in St. Vincent and Martinique, the Exhibition was installed in 

 that gallery of the Geological Department in which other 

 collections elucidating the dynamic side of geology are already 

 displayed. Now, however, it is placed in one. of the bays of the 

 central hall, where it has attracted a large number of visitors. 

 A general guide-label informs the visitor that the Exhibition is 

 arranged in several sections which should be examined in regular 

 order, as follows : — 



A series of maps and diagrams, some specially prepared, shows 

 the geography of the Lesser Antilles and the relations of their 

 volcanoes to the general structure of the globe, particularly to the 

 disturbed region of Central America. On these maps, pins have 



