Jelly-fish, star-fish and sea-urchinsD. Appleton and Company, 1898 - 323 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 71
Pagina
... results which have been obtained by other inquirers concerning the morphology and develop- ment of these animals . But it soon became apparent that it would be impossible , within the limits assigned to me , to do justice to the more ...
... results which have been obtained by other inquirers concerning the morphology and develop- ment of these animals . But it soon became apparent that it would be impossible , within the limits assigned to me , to do justice to the more ...
Pagina
... results which have been obtained by other inquirers concerning the morphology and develop- ment of these animals . But it soon became apparent that it would be impossible , within the limits assigned to me , to do justice to the more ...
... results which have been obtained by other inquirers concerning the morphology and develop- ment of these animals . But it soon became apparent that it would be impossible , within the limits assigned to me , to do justice to the more ...
Pagina
... bringing together in one consecutive account all the more important observations and results which have been yielded by this research . G. J. R. LONDON , 1884 . CONTENTS . CHAPTER INTRODUCTION PAGE ... ... ... ... I. X PREFACE .
... bringing together in one consecutive account all the more important observations and results which have been yielded by this research . G. J. R. LONDON , 1884 . CONTENTS . CHAPTER INTRODUCTION PAGE ... ... ... ... I. X PREFACE .
Pagina 4
... results which during six of these summers I have succeeded in obtaining . If any of my readers should think that the harvest appears to be a small one in relation to the time and labour spent in gathering it , I shall feel pretty ...
... results which during six of these summers I have succeeded in obtaining . If any of my readers should think that the harvest appears to be a small one in relation to the time and labour spent in gathering it , I shall feel pretty ...
Pagina 4
... results which during six of these summers I have succeeded in obtaining . If any of my readers should think that the harvest appears to be a small one in relation to the time and labour spent in gathering it , I shall feel pretty ...
... results which during six of these summers I have succeeded in obtaining . If any of my readers should think that the harvest appears to be a small one in relation to the time and labour spent in gathering it , I shall feel pretty ...
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