338 THE ESSEX NATURALIST cannot distinguish between such trees as the sweet and horse chestnuts. I am glad that trees are well represented as these plants are often overlooked on account of their size! An assessment of common plants is not easy, but some that are discussed are more local than common and I cannot see the need to duplicate both text and illustration of primrose (pp. 89, 90 and 129, 130) and the lesser celandine (pp. 83, 84 and 115, 116). I also think that it is unfortunate that the apparent leaves of the celandine belong to another plant and the line illustration of the leaf is not typical. Exception might be taken by some people to the lack of scientific names, as common names can be misleading, but this easy to read book should lead on to the study of more comprehensive works. The book is attractively designed and some of the colour photographs are excellent, but a number are dull and inaccurate in colour, e.g. bugle, ramsons, crab-apple, and the dark background of others does not help. Altogether, this is a useful little reference book which encourages per- sonal observations of seasonal growth in the plants of the countryside. E. Saunders. Water-birds with Webbed Feet. By Paul Geroudet. English translation by Phyllis Barclay-Smith. Blandford Press, 1965. 314 pages. 42/-. This book will be invaluable to all naturalists whose business interests or hobbies take them near the water. In deliberately flouting systematic order by lumping together all birds with partial or complete webs between their toes, M. Geroudet has provided a very useful guide to any bird likely to be seen near water. The scope of his book, too, is wide, and includes all water birds of western and central Europe. This is apt in an era when both politically and socially we are becoming less insular, but it also serves a practical purpose if one is planning a continental naturalist's holiday. The implications, however, are much wider than this; it is a recognition of the fact that the British Isles are zoogeographically part of Europe, and that zoological knowledge is universal. It is too easy to become set in parochial attitudes even in ornithology, which, as the study of such mobile creatures as birds, should ever be alert to discoveries outside the British Isles. It is pertinent in this context to note the use made by the author of Witherby's "Handbook", alongside its German contemporaries and co-equal classics, Niethammer's Handbuch der deutschen Vogelkunde (1937-42), and the Heinroths Die Vogel Mittel- europas (1924-38), both of which are so little known here. Water-birds with Webbed Feet will be a mine of information to even experienced ornithologists. The illustrations are excellent, the index adequate, and M. Geroudet has been well served by his English translator. The publishers are to be congratulated on producing such a useful book, so well, and at a far from unreasonable price. A. W.