A calm water surface on any freshwater habitat can support a community of animals and plants of great interest. Some live above the water but in regular contact with it, and others hang down from the surface. This handbook deals with the smaller invertebrate animals of this surface community. Among these are springtails, pondskaters, water boatmen, water beetles and water spiders, as well as protozoa, rotifers and tiny crustaceans. After giving a brief introduction to the surface forces that are so important to these animals, the book describes the natural history of the main groups of animals in this community, drawing attention to topics on which further investigation is needed. Consideration is given to the problem of pollution by oil and by detergent. Keys are given for the identification of surface-dwelling animals, either to the major group or, where possible, to the species. Methods of keeping and studying the animals are described. 9781784275150/9781784275112 are digital reprints of 9780855462727/9780855462710 (1989).

This handbook deals with the smaller invertebrate animals of this surface community. Among these are springtails, pondskaters, water boatmen, water beetles and water spiders, as well as protozoa, rotifers and tiny crustaceans.

Includes complete texts or abstracts of lectures delivered before the Society, minutes of meetings, directory of members, and annual accounts.

This issue of Veterinary Clinics: Exotic Animal Practice, Guest Edited by Dr. Sarah Czerwinski, is devoted to the Medical and Surgical Management of Ocular Surface Disease in Exotic Animals. Dr. Czerwinski has assembled a list of articles that covers ocular surface disease in a wide range of animals, including: Rabbits; Rodents (Guinea pigs, mice, rats, and chinchillas); Ferrets; Marine mammals; Birds; New world camelids; Fish; Amphibians; and Reptiles (crocodilians, lizards, chelonians, and snakes).

The Epidermis documents the proceedings of a symposium that explored in detail the fundamental aspects of the epidermis and the still poorly understood process of keratinization. The Division of Dermatology, University Extension and the School of Medicine of the University of California at Los Angeles agreed to sponsor the conference and offered the University's Residential Conference Center at Lake Arrowhead for the meeting place. This volume is a source book of basic dermatologic thought and information. More than a book of dermatology, this volume makes a singular contribution to our knowledge of keratinization. The volume contains 37 papers and opens with an introductory chapter on keratinization, focusing on the history of the keratohyalin granules, the role of lipids in the orderly keratinization of the epidermis, and the desquamation process. Subsequent chapters present studies on topics such as the behavior of the skin; the effects of various experimental conditions on keratinization in organ culture; and the localization and the regional variability in the concentration epidermal enzymes.