First Lecture. SETTLEMENTS IN LAKE ZÜRICH, WESTERN SWITZERLAND, AND FRANCE. PAGES Introductory--First Discovery of Lake-Dwellings at Ober-Meilen Early Investigators--General Scope of Lectures--Descriptive Notices of Settlements in the Lake of Zürich--Investigations in the Jura Lakes, and Archæological Result of the "Correction des Eaux du Jura"--Detailed Notices of the Stations in the Lakes of Bienne, Neuchâtel, Morat, Inkwyl, Burgäschi, Moosseedorf, Sempach, Wauwyl, Zug, Baldegg, Geneva, Luissel, Bourget, Annecy, Aiguebellette, and Clairvaux 1-109 Second Lecture. SETTLEMENTS IN EASTERN SWITZERLAND, THE DANUBIAN VALLEY, AND CARNIOLA. Character of _Pfahlbauten_ in Peat Bogs--Descriptive Notices of Stations in Lake Pfäffikon, Egelsee, Greifensee, the Peat Moors at Heimenlachen, and in the Lakes of Nussbaumen, Constance, Mindli, Bussen, Feder, Olzreuthe, Starnberg, Atter, Mond, and Fuschl--Suggestive Remains in Neusiedlersee--Pile Structures in Hungary--Early Researches in the Lakes of Carinthia and Carniola--Remarkable Discoveries in Laibach Moor--Notices of supposed Beaver-traps and similar Machines found in North Germany, Italy, and Ireland 110-185 Third Lecture. LAKE DWELLINGS AND PILE STRUCTURES IN ITALY. First discovered at Mercurago. (_a_) _Western Lake-Settlements in the Po Valley_: Notices of Stations in Lake Varese and the adjoining Turbaries of Biandrono, Cassago-Brabbia, and Pustenga--Researches in the Lakes of Monate and Varano; in the Turbaries of Mombello, Valcuvia, and Brenno; in the Lakes of Annone and Pusiano, and in the Turbaries of Bosisio, Capriano, Maggiolino, Mercurago, Borgo-Ticino, and San Martino--Remarkable Station in Lagozza. (_b_) _Eastern Lake-Settlements in the Po Valley_: Descriptive Notices of the Stations in the Lakes of Garda, Fimon, and Arquà-Petrarca, and in the Turbaries of Polada and Cascina. (_c_) _Terremare_: Discovery and Significance of the Terramara Deposits--Special Investigations at Castione--Notices of further Typical Stations at Montale, Casale Zaffanella, and Gorzano--General Remarks on Terramara Settlements--Their Distribution, Relics, and Organic Remains 186-276 Fourth Lecture. SPECIAL CHARACTER OF THE REMAINS FOUND AT LA TÈNE, AND IN THE LAKE OF PALADRU: LACUSTRINE AND MARINE DWELLINGS IN THE LOWER RHINE DISTRICT AND NORTH GERMANY.