Quarterly Journal of Microscopical Science, Volume 17

acid alcohol animals Anodon Antedon appears axis Bacilli band become blastoderm blood-corpuscles body body-mass cavity chitinous cilia colouring matter colourless concrescence consists contractile contraction corpuscles dark described Difflugia distinct double refraction Dreissena ectoderm ectoplasm elongate embryo endoderm epithelial cells epithelium Euglena external fathoms fibres figure filaments finely granular fluid Foraminifera genus germ gill gill-filaments glands granules Gromia haustoria Heliozoa Hertwig and Lesser Holothurian hyaline inner gill-plate interlamellar junctions lacunar tissue lamella Lamellibranch Lankester larva larvæ Leptoplana light longitudinal lophophoral mass membrane microscope muscle Mytilus nucleolus nucleus observed occur organs outer gill-plate Pedicellina pigment Planarians Plate portion posterior present produced protoplasm pseudopodia purple refrangible regard retina rods sarcode seen segmentation showed side solution species specimens spectrum spores stained stipes structure sub-filamentar subgerminal layer substance surface tentacles tion transverse vacuoles vesicles wall whilst white yolk zoospores