. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF COVERING TUBULARIA PERISARC 417 the various experiments performed. These were attached with plasti- cine to one edge of strips of window glass 2 cm. wide and 20 cm. long which in turn were fastened to the bottoms of 10-inch finger bowls. Each finger bowl contained two glass strips spaced about 5 cm. apart and on each strip were 13 of the tubes (Figure 1). The finger bowls, filled with sea water to a point where the tubes were just covered, were placed on a water table with temperatures recorded several times a day
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF COVERING TUBULARIA PERISARC 417 the various experiments performed. These were attached with plasti- cine to one edge of strips of window glass 2 cm. wide and 20 cm. long which in turn were fastened to the bottoms of 10-inch finger bowls. Each finger bowl contained two glass strips spaced about 5 cm. apart and on each strip were 13 of the tubes (Figure 1). The finger bowls, filled with sea water to a point where the tubes were just covered, were placed on a water table with temperatures recorded several times a day. The first ten stems to develop the constriction separating hydranth from stem were measured and the remaining three were discarded. All stems were removed from the tubes when the first primordium was measurable. This was found necessary because disturbances in the water produced in removing the first stems sometimes caused others to shift their positions in the tubes. In this connection it should be noted that although they could not be given the benefit of circulating water, the stems nevertheless re-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
