Quarterly Journal of Microscopical Science, Volume 90

acid Al-Hussaini aldehydes ampulla anaphase Anat animals appear basiphil beryllium Biol branchial calcification cavity Chaetospira chromatin chromosomes ciliate colour connective tissue contains cyprinids Cyprinus cytoplasm described distal dorsal endodermis enzyme epidermis epithelial epithelium Feulgen fibres filaments fish fixation fixed fluid fuchsin germinal Gobio Golgi bodies Golgi element Golgi rods granular granules groups growth haematoxylin hydranth Ibid incubation intestine later layer Leydig cells lipoid cells lorica macronucleus material matrix Meckel's cartilage medusa membrane bone membranelles mercuric chloride mesenchyme metaphase method micr mitochondria mitosis mouth mucosal folds muscle mustard gas normal nuclear nuclei nucleoli observed oocyte ooplasm osteoid oxidation perichondral pharynx phosphatase activity pinnule plasmal plate Pomatoceros posterior protoplasm reaction region Rutilus Schiff's reagent sections seen solution species specimens spermatophore stage stained Stichotricha stolon strongly positive structure substance sudan black surface taste-buds technique Text-fig tion tubules vacuoles yolk zone Zool