Contributions from the Biological Laboratory Volume 9

Contributions from the Biological Laboratory Volume 9

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...with age 3. The metamorphosis of the chin 4. Sexual differences 5. The result of uprightness 6. A comparison of man with apes 7. The human skull of the future X. THE LOCOMOTOR SKELETON. 1. The necessity for animal locomotion 2. The evolution of locomotor levers 3. The kinds of appendages 4. Homology and adaptation 5. The girdles in general 6. The pectoral girdle in man 7. The human pelvic girdle 8. The free appendages 9. The arm 10. The leg XI. THE HANDY HAND AND THE MAKESHIFT FOOT. 1. The parts of the human hand 2. Unusual human hands 3. Hands not human 4. The opposable thumb 5. Tactile fingers 6. The evolution of tools and weapons 7. The parts of the human foot 8. Contrast between the foot and hand 9. The arches of the foot 10. The adaptation of the human foot 144 REACTIONS OF LAND ISOPODS TO LIGHT. BY CHARLES H. ABBOTT. Journal of Experimental Zoology, Vol. 27, No. 2. November, 1918. Author's Abstract or This Paper Issued Reorintod from The Journal Of Experimental BY The Bibliographic Sbrtice, Octobers Z06LOOY, Vol. 27, No. 2, November, 1918 REACTIONS OF LAND ISOPODS TO LIGHT CHARLES HARLAN ABBOTT Biological Laboratory, Brown University CONTENTS I, Introduction 194 II. Historical 195 III. Material 196 IV. Normal behavior 197 A. Reactions to light 197 1. Photokinesis 197 2. Phototaxis 197 3. Vision 198 B. Relation of contact and vision 198 V. Experiments with directive light 199 A. Apparatus 199 B. Normal reactions 205 1. Positive and negative responses 206 2. Orientation 208 3. Angle of negativeness 211 4. Conclusions 214 C. Modifiability of the light reactions 215 1. Reaction to different intensities 216 2. Effect of repeated stimulation 220 3. Comparison of reactions following exposure to light and to dark 223 4. Comparison of reactions of...show more

Product details

  • Paperback | 72 pages
  • 189 x 246 x 4mm | 145g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236553829
  • 9781236553829