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The northern wing, originally a part of the museum, is now divided into a large general work room (e, 6 by 8 m.) and two research laboratories (f, ƒ, each 3.2 by 5.2 m.). From the larger room a spiral iron stair ascends to the floors above.

The second story (fig. 6) contains the main working rooms of the station. The southern wing has the office (a) and private room (b) of the director and that (c) of the vice-director. Adjacent, are stairs to the floor above. At the end of the central corridor a door opens directly into the large well-lighted general laboratory (d, 10 by 10 m.) with table space for 40 pupils. (Pl. XVI, A.) At one end of the room, above the door leading to the research laboratories, is the motto of the founder, "Partout est la vie." Upon either side upon the walls are paintings by artist friends of the station; upon the right, "The fishermen," by Leenhardt; upon the left a brilliant painting by Professor Balaman of a charming bit of the local coast in the evening sunlight.

From a central corridor leading to the large well-lighted library (f, 7 by 12.5 m.) open six research laboratories (e,-e), each about

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FIG. 6.-Upper floor, zoological station at Cette. From Calvet (1904)

4 by 5 m., abundantly lighted by a window 2 m. in width, and simply furnished with work tables facing the window, chest of drawers, shelving, sink with salt and fresh water supply, gas with hood. The rooms are heated by coal stoves. One of these laboratories is at present used as a glassware room.

The third story contains four furnished chambers, the reservoir for the laboratories on the floor below, and several large storerooms. The small annex (6 by 14.25 m.) of one story, north of the main building, contains a well-lighted experimental aquarium room and a dissecting room (5.5 by 6 m.), a shop (3 by 3 m.), and machine room (5.6 by 6 m.). The floor of the aquarium room is of cement and slopes to a central drain. The water tower with the reservoir supplying the aquaria and the windmill are adjacent to the annex.

The intimate association of the station at Cette with the laboratories at Montpellier insures adequate equipment of chemical reagents, glassware, and instruments for all lines of morphological

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research and makes possible the prompt supply of any need in these particulars. Provision is made at Cette permanently of numerous student microscopes, two Minot rotary microtomes, paraffin ovens, water still, etc.

The library at Cette is exceptionally good and very fully catalogued. It contains nearly 5,000 volumes, including 123 serials (in 1905, see list in Calvet), and contains the libraries of its founder, Professor Sabatier, and of Doctor Rouzaud, and some gifts from the library of Quatrefrage. The serials include the Challenger Reports, the publications of the Naples station and the Institute at Monaco, a very complete representation of French serials, and a number of foreign purchases and exchanges. The library is splendidly organized and has complete author and subject card catalogues and also complete catalogues of the zoological library at the university and of the Academy of Sciences at Montpellier, whence books for use at the station can be secured in twenty-four hours or less.

The collections in the museum include a well-arranged and wellmounted exhibit in glazed cases of the local fauna and a large conchological collection, French and foreign, the gift of Abbé Culliéret. The collection of the local fauna was depleted by the fire at the exhibition in Montpellier in 1896 but has since been in part replenished. The exhibit is arranged systematically and is especially complete in annelids and bryozoans. There is also a small exhibit of oceanographical instruments and models.

The exhibition aquarium rooms in the basement are in grotto style, the light entering through the aquaria which are arranged around the periphery, immediately against the outer wall of the building, and receive the light through basement windows. Wooden doors above the glazed openings provide access to the aquaria for attendance, and the space below is also closed off in cupboards. There are in all eighteen tanks with bottom and partitions of 10 cm. reenforced concrete, resting on masonry walls. Of these tanks sixteen are of about 1 cu. m. capacity, while the two tanks in the corners with hexagonal bases contain 2.5 cu. m. The small tanks are 1.43 m. long, 0.9 m. wide and 0.8 m. high, with the base 0.87 m. above the floor. The two larger tanks have an opening 0.8 by 1.5 m. The plate glass fronts (22 cm. thick) are set in grooves in minium aquarium cement.

In the experimental aquarium room (5.1 by 6 m.) there are four reenforced concrete tables (0.6 by 2.5 m. and 1 m. high) with marginal channels for collection of accidental overflow from aquaria. Each table (Pl. XVI, B) carries three fixed aquaria built on the table with plate glass sides 5 mm. thick, held in place in brass angles (2 by 3 cm. and 2 mm. thick), set in the cement table top and held in place at

the top with adjustable brass rods. The top is 10 cm. thick, and rests on walls of the same material 15 cm. in thickness. The aquaria are each 38 cm. wide and 60 cm. long and of three heights, 23, 33, and 43 cm., respectively, on each table. Upon the floor of the room is a semicircular floor tank 3 m. in diameter and 0.5 deep and capacity of 3 cu. m., with concrete wall 30 cm. thick.

The aquaria throughout are supplied with overhead jet from a curved tin-lined copper pipe (6 mm.) and vertical standpipe with surface outflow. A perforated porcelain funnel (part of an incandescent gas fixture) is used for the top of the standpipe to prevent clogging of the outlet. The water is passed but once through the aquaria.

A large assortment of fishes and invertebrates is kept on exhibition in the tanks but the recent industrial development of petroleum refining works at Cette has added greatly to the difficulty of keeping animals alive in the aquarium. The discharge of wastes from the refineries into the Étang de Thau is proving disastrous both to the aquaria and to the fisheries of the region.

The pumping plant consists of an "Aeromotor" specially adapted to operate in the variable and often violent "mistral" which blows during October-May, and a 4-horsepower electric motor with a Thirion horizontal plunger pump of bronze with a capacity of 6,000 liters per hour. The water is drawn from a cistern 3 m. deep and 1.5 m. square, adjacent to the pump room. This cistern is connected with the canal by a cement conduit (0.4 to 0.5 m. in diameter) below the level of lowest water. The water passes through several copper screens before reaching the cistern. From the pump the water passes in subterranean mains to the water tower, to the cold basins in the basement, or to the high-level reservoir in the building. The water tower is a cylinder of reenforced concrete inclosed in an octagonal wooden building resting upon an octagonal masonry foundation 3.10 m. in height. The reservoir is 4.8 m. in diameter and 4 m. in height with walls 20 cm. thick and a capacity of 59 cu. m. The cold basins in the basement are two large reservoirs of 34 and 40 cu. m. capacity, respectively, originally intended as receivers of water from the adjacent canal to be pumped to the aquaria and laboratories. This project was, however, abandoned and the outside cistern and reservoir adopted. To avoid extremes of heat and cold in the water circulating in the aquaria it is carried from the cement reservoir in the water tower through a serpentine pipe immersed in the water of one of the protected reservoirs in the basement. By this means water from the Étang with temperature extremes of 0° and 28° can be delivered to the aquaria at 8° and 16°, respectively, in winter and summer. This system is, however, not used in the temperate seasons of the year.

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