32. Heterozoida (+ Cenzoids) 34. Avicularium on stained Bugula 35. Zoid anatomy 36. Pore plates 37. Muscle topography in zoid. 38. Vestibular glands Seasonality in Bryozoans. 39. Budding in Membranipora 40. Attachment of funiculus; Position of ances 41. Vestibular glando; bacterial glands 42. Spermatids & eggs. Intracolozy fertilization 43. Fixation + staining 44. Egg development (cleavage); larvae in ovicells; pseudopores 45. Slides examined in Paris - vestibular glands, brown body anus; pore plates; bacterial glands; Regressions in vestibular glands. Development of spines 47. Bacterial gland; regeneration; spermatzoa 48. Funiculus; egg development 49. Fixation; decalcification 50. Vestibular + bacterial glands 51. Pore plates; glands; muscles. 52. pore plates. E.M. photographs.