Page:Popular Science Monthly Volume 55.djvu/588

570 succession of trees according to altitudes, with its strongly marked division lines, is no longer seen. Specimens of fifty-eight species of trees and shrubs have been collected and placed in the National Museum. Only ten species of mollusks, one crustacean (the common crawfish), probably a dozen fishes (the author identifies eight and mentions others), eight batrachians, two snakes, and a turtle have been found. Of mammals, thirty-five species are described as known to occur at the present time, and eight as of doubtful occurrence now.

Geology of Block Island.—In a study of the geology and natural history of Block Island, of which Arthur Hollick gives a summary in the Annals of the New York Academy of Sciences, the most important problem was whether the Amboy clay series was represented in the island. Of fifteen species of fossil leaves and fruit capable of identification, represented by about twenty-five specimens, at least nine were typical of the Amboy flora. Observations on dip and strike of strata tended to emphasize the fact of contortion of glacial action, the dip in all cases being toward the north, indicating that the strata had been pushed southward in a series of overthrust folds by the advancing ice front. The flora may be divided physiographically into that of the hills, the peat bogs and pond holes, the salt marshes, the sand dunes, and the salt water. Trees are rare, and such vegetation as is dependent on forestal conditions is absent. The bulk of the surface is that of a typical morainal region, with rounded hills and corresponding depressions, many of the depressions being occupied by swamps or ponds, often without any visible outlet. Running streams are few and insignificant, and permanent springs occur only in a limited number of localities. The soil is bowlder till and gravel, with sand in the dunes and beaches, and there are no outcrops of rock. The flora is morainal in its general character, except in the peat bogs and on the limited sand dunes and sea-beach areas, and has its nearest analogue in that of Montauk Point. "In fact, if we could imagine Montauk Point to be despoiled of its few remaining trees and converted into an island it would bear a striking resemblance, geologically and botanically, to Block Island." Considering the geological features of Long Island, Block Island, Martha's Vineyard, and Nantucket, and comparing their floras, we find that all except Block Island have some of the plain region remaining with them, on which a characteristic flora finds a home. Block Island has lost all its plain region and accompanying flora, and is now merely an isolated portion of the terminal moraine, with small areas of modern sand beach and dune formations, affording a home only for such species as can exist under such conditions. The island appears to have been extensively wooded before it was settled, and large stumps, together with roots and branches, are found in some of the peat bogs. The scarcity of animal life on the island is sure at once to attract the attention of the observer from the mainland. Tree-living birds are absent, but robins, bank swallows, red-winged blackbirds, and meadow larks occur with some frequency. Among mollusks, the periwinkle of the Old World, an importation or migration, is the most abundant. Frogs and spotted turtles are plentiful, and a few small striped snakes were seen by Mr. Hollick. The archæology of the island is being studied by persons specially interested in the subject.

The Claims of the High School.—In considering the right of the public high school to be a just charge upon the public treasury, Mr. Frank A. Hill, of the Massachusetts State Board of Education, finds that less than one fifth of the school money raised in the State is expended on account of these schools, whereas if the number of pupils in each of the thirteen grades of school was equal and the money was evenly divided, the higher grades would be entitled to four thirteenths, or nearly one third of it. To an objection sometimes raised against the high-school system that the "toiling millions" will have no use for more than the teaching of the elementary grades, Mr. Hill asks, Who has a right to decide whether one child shall have a greater or less amount of instruction than another?" And so freedom of choice, when the question of what one's life work shall be comes up, is a basic thing in government by the people. Upon the wisdom of this choice turns the welfare of each unit in the State, and