THE summer head-quarters of the United States Fish Commission is located at Wood's Holl, a village situated on the south side of Cape Cod, Mass., north of Martha's Vineyard. The coast scenery is pretty, and inland the country is undulating and partially clothed with forests of pines and other trees, which have mostly been planted within the last forty years. Wood's Roll and the neighbourhood is an increasingly favourite locality for the summer residences of the inhabitants of Boston, New Haven, New York, and other large towns in that part of the country, and already a colony of scientific men is making its appearance. Excursion steamers run frequently in the summer for the day trip from Newport and other places. As in the whole of that region of North America, the surface-soil is a thick deposit of glacial drift containing numerous boulders.