. Jelly-fish, star-fish and sea-urchins [microform] : being a research on primitive nervous systems. Nervous system; Jellyfishes; Starfishes; Sea urchins; Nerveux, Système; Méduses; Astérides; Echinides. SECTION OF COVERED-EYED 93 Temperature of water. Time occupied In passage of contractile waves. 20° 4 seconds. 32° 3 second.'?. 42° 2| secondij. G5° 2 seconds. 75° 11 seconds. 85° Blocked. Or, adopting again the graphic method of statement, these variations may be represented as follows:— 26° 32° 42° 05° 75° 85^ One second. ^'t. 16. Submitting a contractile strip to slight strains has
. Jelly-fish, star-fish and sea-urchins [microform] : being a research on primitive nervous systems. Nervous system; Jellyfishes; Starfishes; Sea urchins; Nerveux, Système; Méduses; Astérides; Echinides. SECTION OF COVERED-EYED 93 Temperature of water. Time occupied In passage of contractile waves. 20° 4 seconds. 32° 3 second.'?. 42° 2| secondij. G5° 2 seconds. 75° 11 seconds. 85° Blocked. Or, adopting again the graphic method of statement, these variations may be represented as follows:— 26° 32° 42° 05° 75° 85^ One second. ^'t. 16. Submitting a contractile strip to slight strains has also the effect of retarding the rate of the waves while they pass through the portions of the strip which have been submitted to strain. The method of straining w^hich I adopted was to pass my finger below the strip, and then, by raising my hand, to bring a portion of the strip slightly above the level of the water. The irritable or contractile surface was kept uppermost, and therefore suffered a gentle strain; for the weight of the tissue on either side of the finger made the upper surface somewhat convex. By passing the finger all the way along l! r »^:V I' i] :i < n "ll. m . ij. 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 Romanes, George John, 1848-1894. London : K. Paul, Trench
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Keywords: ., bookcentury1800, bookdeca, booksubjectnervoussystem, bookyear1895
