vi Contents. 



MOLLUSCA PAGE 



Venus 53 



Sycotypus 59 



Loligo , 70 



CRUSTACEA 



Homarus 78 



Branchipus 91 



Cyclops 95 



Pandarus 98 



Lepas 101 



Cancer 105 



Talorchestia 109 



LIMULUS AND ARACHNOIDEA 



Limnlus 113 



Epeira 118 



ANTENNATA 



Sphinx 1 23 



Acridium 1 29 



Molgtila 134 



APPENDIX 



A. Use of Laboratory and Laboratory Apparatus 143 



B. List of Instruments and Reagents 145 



C. Microscopes 146 



D. Directions for Dissection 148 



E. Methods of Killing, Fixing, and Hardening 150 



F. Methods of Preservation 151 



G. Methods of Staining 151 



H. Methods of Mounting 152 



I. Methods of Imbedding and Section Cutting 153 



