Jelly-fish, star-fish and sea-urchinsD. Appleton and Company, 1898 - 323 pagini |
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Pagina 4
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
Pagina 4
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
Pagina 8
... question , we may be quite sure that by the time we come to the jelly - fish — where the object of the experiments in the first instance was to obtain evidence of the very existence of nerve - tissue - all question of pain must have ...
... question , we may be quite sure that by the time we come to the jelly - fish — where the object of the experiments in the first instance was to obtain evidence of the very existence of nerve - tissue - all question of pain must have ...
Pagina 12
... nearly all cases these marginal bodies contain more or less brightly coloured pigments . The question whether any nervous tissue is present in the Medusa is one which has long occupied 12 JELLY - FISH , STAR - FISH , AND SEA - URCHINS .
... nearly all cases these marginal bodies contain more or less brightly coloured pigments . The question whether any nervous tissue is present in the Medusa is one which has long occupied 12 JELLY - FISH , STAR - FISH , AND SEA - URCHINS .
Pagina 4
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
... question to its only possible answer , and to verify each step in the process of an experimental proof . Moreover , the difficulties in all these respects are increased tenfold in a seaside laboratory without adequate equipments or ...
Termeni și expresii frecvente
able ambulacral feet artificial rhythm Aurelia aurita become bell blocked brium cause ceased chloroform co-ordination continue contractile strip contractile tissue contraction contraction-waves covered-eyed Medusa crawling curare diastole direction discharge Echinoderm Echinodermata Echinus effect excising excitable tissues experiments fact feeble fibres forceps fresh water function ganglionic glycerine hour Illustrations induction shocks influence instance intervals irritability jelly-fish latter lithocyst locomotor centres manubrium marginal bodies marginal ganglia minutes movements muscle muscular mutilated naked-eyed Medusa natural rhythm nectocalyx nerve nerve-cells nerve-centre nerve-fibres nerve-ring nerve-trunks nervous network nervous system normal sea-water observed occur organ paralyzed pass pedicellariæ pedicels period of latent physiological plexus poison portion prepotent Professor pulsations radial tubes rays reflex reflex action removed response Sarsia seconds segments spasm species specimens spines spontaneity Star-fish strychnia suckers surface swimming motions swimming-bell systole tank temperature tentacles tentacular tetanus Tiaropsis indicans tion umbrella unmutilated animal wave whole