Archive image from page 55 of Darwin and modern science; essays. Darwin and modern science; essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of the Origin of species darwinmodernscie00sewa Year: 1909 a Fig. A. Anchor (a) and basal-plate (b) of Synapta lappa. Length of anchor = 0'35 rnrn. (After Oestergren, Zool. Anzeiger, xx. 1897.) a Fig. B. Anchor (a) and basal-plate (b) in side-view (after Oestergren). of the tube-feet. The anchors act automatically, sinking their tips towards the ground when the corresponding par

---

Archive image from page 55 of Darwin and modern science; essays. Darwin and modern science; essays in commemoration of the centenary of the birth of Charles Darwin and of the fiftieth anniversary of the publication of the Origin of species darwinmodernscie00sewa Year: 1909 a Fig. A. Anchor (a) and basal-plate (b) of Synapta lappa. Length of anchor = 0'35 rnrn. (After Oestergren, Zool. Anzeiger, xx. 1897.) a Fig. B. Anchor (a) and basal-plate (b) in side-view (after Oestergren). of the tube-feet. The anchors act automatically, sinking their tips towards the ground when the corresponding part of the body thickens, and returning to the original position at an angle of 45° to the upper surface when the part becomes thin again. The arms of the anchor do not lie in the same plane as the shaft, and thus

---

Size: 1558px × 1284px
Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1900, 1909, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, cambridge_philosophical_society, cambridge_university_press, darwin_charles_1809_1882, drawing, evolution, historical, history, illustration, image, mblwhoi_library, page, picture, print, reference, science_history, seward_a_c_albert_charles_1863_1941, vintage, zimmermann_a_albrecht_b_1860