This content is only available via PDF.
Copyright © 1905 by the Company of Biologists Ltd.
W. WOODLAND; Memoirs: Studies in Spicule Formation : I.--The Development and Structure of the Spicules in Sycons: with Remarks on the Conformation, Modes of Disposition and Evolution of Spicules in Calcareous Sponges generally. J Cell Sci 1 November 1905; s2-49 (194): 231–282. doi: https://doi.org/10.1242/jcs.s2-49.194.231
Download citation file:
There are many benefits to publishing in Journal of Cell Science - read more about why you should choose JCS or visit our submission page now.
We are welcoming submissions for our next special issue, which will focus on ‘Cell and tissue polarity’ and will be guest edited by David Bryant. Submission deadline: 15 July.
The Forest of Biologists is a biodiversity initiative created by The Company of Biologists, with support from the Woodland Trust. For every Research and Review article published in Journal of Cell Science a native tree is planted in a UK forest. In addition to this we are protecting and restoring ancient woodland and are dedicating these trees to our peer reviewers. Visit our virtual forest to learn more.
We are now accepting proposals for our 2025 Biologists Workshops programme. As the scientific organiser, your involvement will be focused on the science. We'll take care of all the logistics. In 2025 we'll continue our efforts to diversify our Workshop programme and will be reserving one of our Workshops for an application from a Global South (GS) country to host an event overseas.
FocalPlane’s 2023 image competition is underway, in celebration of the community site’s third birthday. Click here for submission details and information on how to showcase your favourite image.