ner, the worker's desk. Some
shelving, some pegs, and a small cupboard complete the stall. It is
unnecessary to say that the laboratory furnishes gratuitously to those
who are making researches everything that can be of service to them.

Four of these stalls are situated to the north, with a view of the sea,
and the other four overlook the garden. They are separated from each
other by a simple partition, and all open on a wide central corridor that
leads to the aquarium. Before reaching the latter we find two offices
that face each other, one of them for the lecturer and the other for the
preparator. These rooms, as far as their arrangement is concerned, are
identical with the stalls of the workers. The laboratory, then, is
capable of receiving twenty-three workers at a time, and of offering them
every facility for researches.

[Illustration: FIG. 3.--GENERAL VIEW OF THE ROSCOFF LABORATORY.]

The aquarium is an immense room, 98 ft. in length by 33 in width, glazed
at the two sides. It is at present occupied only by temporary tanks that
are to be replaced before long by twenty large ones of 130 gallons
capacity, and two oval basins of from 650 to 875 gallons capacity,
constructed after the model of the one that is giving so good results at
Banyuls. At the extremity of the aquarium there is a store room
containing trawls, nets of all kinds, and mops, for the capture of
animals. Here too is kept the rigging of the two laboratory boats, the
Dentale and Laura. Above the store room is located the director's work
room.

A wide terrace separates the aquarium from the pond. This latter is 38
yards long by 35 wide. Thanks to a system of sluice valves, it is filled
during high tide, and the water is shut in at low tide, thus permitting
of having a supply of living animals in boxes and baskets until the
resources of the laboratory permit of a more improved arrangement. This
basin is shown in Fig. 3. It is at the north side of the laboratory as
seen from the beach. Here too we see the aquarium, the garden, and a
portion of the shore that serves as a post for the station boats.

We must not, in passing, fail to mention the extreme convenience that the
proximity of the aquarium work room to the pond and sea offers to the
student.

This entire collection of halls, constituting the scientific portion of
the laboratory, occupies the ground floor. The first and second stories
are occupied by sleeping apartments, fourteen in number.