The biological stations of Europe / by Charles Atwood Kofoid.

  • Kofoid, Charles A. (Charles Atwood), 1865-1947.
Date:
1910
Catalogue details

Licence: In copyright

Credit: The biological stations of Europe / by Charles Atwood Kofoid. Source: Wellcome Collection.

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    From the aquaria the water passes to the filter beds above the great reservoir tanks. These are of heavy wooden planking and contain a layer of stones with gravel and sand (20 cm.) above. The fdters are in duplicate, but one being used at a time. With the pur- pose of permitting a complete sedimentation and fermentation of the water the reservoirs and filters are so constructed that the filters discharge at one end of a long reservoir. Surface water only is drawn off at the other end and the water passes thence through a second long reservoir before reaching the intake of the pump. The salt-water system is thus a closed one. The fresh water, on the other hand, after sedimenting in the long reservoir is passed through the aquaria and discharged to the sewer after use. The aquaria are amply stocked, a collection being kept at Helder for this purpose. Shipments are made in wooden tanks (0.9 high, 0.75 m. diameter) with reduced opening. In addition to an extensive assortment of mollusks, arthropods, worms, echinoderms, sea anemones, and other ccelenterates from the coasts of the Netherlands and the English Channel, the aqua- rium keeps constantly on exhibition an extensive variety of fishes fresh-water and marine, tropical and exotic, as well as the native ones. Among the notable achievements of Doctor Kerbert have been the successful installation of a herring tank (pelagic fish being noto- riously difficult to handle in aquaria), the rearing in captivity of a number of fishes, and especially the breeding in the tanks of the giant salamander of Japan. Literature: Kerbert (1888, 1905, 1906), Hoek (1895). BELGIUM. BELGIAN FRESH-WATER BIOLOGICAL LABORATORY, OVERMEIRE, BELGIUM. Director, Dr. Ernest Rousseau, 31, Rue Vautier, Bruxelles, Belgium. The “Station biologique d’Overmeire” was opened in April, 1906, under the directorship of Dr. Ernest Rousseau, to whose efforts its foundation was due. Commissioned by the Royal Museum of Natural History of Brussels to conduct an exploration of the fauna of the fresh waters of the country, he became convinced of the de- sirability of a fresh-water station and finally selected a location in “lower” Belgium, upon Lake Overmeire, as the most favorable situation, both on account of the richness of the local fauna and of the accessibility from scientific centers of the country. The station is a private venture established and equipped by the director and has no organic connection with the universities or scientific institutions of Belgium. There small size and slender resources of the station limit its facilities. The are, however, two research tables which are offered without