50 



October 16, 1859, with a self-registering gauge, in the harbour of 

 Trieste. The results of the observations for more than two months 

 have appeared in the 'Mittheilungen' of the Geographical Society of 

 Vienna. The height of high water above low water was found to be 

 87 centimetres at spring tides, and 24 centimetres at neap tides. 



Professor Lorenz, of Fiume, the author of various Essays on Geo- 

 logy, Physical Geography, and Natural History of various districts in 

 the Salzkammer Gut and on the Croatian coast of the Adriatic, which 

 date back too far to fall within the scope of the present notice, has 

 recently published the following memoirs : Geological Survey of 

 the Liburnian Karst and the adjacent Quarnero islands, giving a 

 sketch of these Adriatic coast declivities and islands, the geological 

 constitution of which had never before been examined with accuracy 

 (Jahrbuch der k. k. geologischen Reichs-Anstalt, Band X.). An 

 inquiry into the sources of the springs of the Liburnian Karst and 

 adjacent Quarnero islands, some of which are remarkable for their 

 excessively low and constant temperature (Mittheilungen der k. k. geo- 

 graphischen Gesellschaft in Wien, B. III.) . On the forest-trees of the 

 Liburnian Karst range. A Report on the question whether trees and 

 other growths could be produced on the declivities of the Croatian 

 Adriatic coast, being the result of physical and botanical researches 

 continued for two years, accompanied by a vegeto-geographical map 

 of that country. This Report is now going through the press, and 

 will appear in the ' Mittheilungen ' of the Geographical Society of 

 Vienna. A Report on the flora of the same country is also in pro- 

 gress. 



During the last five years Professor Lorenz has been engaged in 

 researches on the Liburnian (Croato- Adriatic) coasts, and also in the 

 hitherto unexplored waters^ of the Quarnero (or Gulf of Fiume), his 

 object being to inquire into the distribution of submarine algae and 

 animals, on the same principles that had guided the founders of this 

 still youthful department of science, such as (Ersted in the Baltic, 

 Forbes in the ^Igean and British seas, Sars, Arbjornsen, Loven in 

 the Scandinavian sea. Professor Lorenz considers that he has made 

 improvements in the method of carrying on researches of this kind. 

 The physical hydrography of the submarine stations in the Quarnero, 

 the geology and quality of the sea-bottom, temperature of the air, 

 density and chemical composition of the sea-water, the currents, 





