. The Biological bulletin. Biology; Zoology; Marine biology. 3 -- 2 - 1 -. Fig. 23. Head frequencies of fourths and sixths in old and young individu- als of P. lata: fourths, young, unbroken line; sixths, young, dotted line; fourths, old, long dashes; sixths, old, dots and dashes. The curves in this graph are taken from Figs. 21 and 22. same concentration of a single agent (Child, '16; Buchanan, '22). In pieces which normally show a high head frequency it may be decreased and in pieces which normally show a low head frequency. Please note that these images are extracted from scanned page image

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. The Biological bulletin. Biology; Zoology; Marine biology. 3 -- 2 - 1 -. Fig. 23. Head frequencies of fourths and sixths in old and young individu- als of P. lata: fourths, young, unbroken line; sixths, young, dotted line; fourths, old, long dashes; sixths, old, dots and dashes. The curves in this graph are taken from Figs. 21 and 22. same concentration of a single agent (Child, '16; Buchanan, '22). In pieces which normally show a high head frequency it may be decreased and in pieces which normally show a low head frequency. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectb, booksubjectzoology