* * * * * The number of lacustrine sites in each county in Ireland is marked within a small circle on the map (plate L.), and the lake dwelling area, as at present known, is shown by a shading, light or dark, according to the number of sites. The province of Ulster (including historical notices of crannogs) contains one hundred and twenty-four; Leinster, nineteen; Munster, nine; and Connaught, sixty-nine. This makes for all Ireland a total of two hundred and twenty-one. The ascertained sites are, however, in all probability, but a mere fraction of the multitude that had formerly existed. Further explorations amongst the remains of Irish and Scottish lake dwellings would, doubtless, tend to strengthen the evidence of these structures having been the work of a people who, at that remote period, formed most probably a homogeneous community. In the opinion of some theorists, these dwellings seem characteristic of an early wave of immigration from the East--then throwing off its superabundant population as does now the West--and in this manner it is supposed that the lakes of Central Europe and Great Britain became studded with water-laved homes. However, as before stated, they, with a greater degree of probability, sprang up independently by reason of the natural laws which govern man’s actions in a semi-civilized state--in Erin, their first founders being rude flint-armed hunters of the _Megaceros_, the bear, the wolf, and their descendants wielders of the pike and matchlock. Recent investigation traces “island homes” back to a period so remote, that the evidences of man’s formation and occupation of these retreats prove in their way as interesting as the remains of the buried cities of Herculaneum and Pompeii, for lacustrine dwellings, also, show traces of a species of civilization long passed away (evidences of which were observable on the sites of Venice, Mexico, and London), and the purposes of their primitive founders were alike, whether situated on the lagoons of the Adriatic, the flats of Central America, or the reaches of the Thames. [Illustration: Plate L. MAP OF IRELAND SHEWING APPROXIMATE DISTRIBUTION OF ALL KNOWN LACUSTRINE SITES] FOOTNOTES [1] _Prehistoric Times_, Sir John Lubbock, 2nd ed., p. 214. [2] Some Irish scholars give a different interpretation. [3] Hull, in his _Physical Geology of Ireland_, cites the “Four Masters” as alluding to man and the _Megaceros_ being contemporaneous, p. 270. [4] Sir John Lubbock, writing of extinct mammalia, states that remains of the _Megaceros Hibernicus_ never occur in the ‘Kjökken-moddings,’ lake habitations, or sepulchral remains; nor are there any traditions in Western Europe which can be regarded as indicating even obscurely a memory of this gigantic mammal.--_Prehistoric Times_, 2nd ed., 1869, p. 291. [5] _Proceedings, R. I. A._, vol. viii., p. 424. [6] _Journal of the Royal Geological Society of Ireland_, vol. v. p. 170. New Series.