232 THE SCIENTIFIC MONTHLY
affords a remarkable and convincing s|>ectacle. \eedless to say, it is along such crowded highways that further discoveries of the rarer migrants will be made.
Just such a channel is formed by Long Beach, Long Island, where it narrows between ocean and hay. For two irregular lines of dunee also traverse this land-lane, slill further narrowing its course and producing a miniature valley along which both feathered and scale-winged mi- grants multitiidinously stream. Swallows begin to sweep past even in mid-August; an occasional humming-hird (seldom noted in the litera- ture of migration owing to the elusiveness of its long flight to Mexico) sometimes hurtles past like a shot released; the eye can hardly fol- low it. While the ever-present "monarchs" and the various kinds ot
��DT-wAi. Where Long Beach ni a miniature valle;. Througb I ' repreaeoCed by clrde-tipp«d ai