Of the Crane (_Grus cinerea_) we have a great number of bones but of the common Heron not one. I have placed a recent skeleton of heron in the case to help us to look out for and determine any that may turn up. Bones of the Bittern (_Botaurus_ or _Ardea stellaris_) are quite common, as are those of the Mute or tame Swan (_Cygnus olor_) as well as of the Hooper or wild Swan (_Cygnus musicus_ or _ferus_). Goose (_Anser_) and Duck (_Anas_) are not so numerous as one might have expected. The Grey Goose (_Anser ferus_) and the Mallard (_Anas boscas_) are the most common, but other species are found, as for instance _Anas grecca_. We have also the Red Breasted Merganser (_Mergus serrator_), and the Smew (_Mergus albellus_), the Razor Bill (_Alea tarda_), the Woodcock (_Scolopax rusticola_), the Water Hen (_Gallinula chloropus_) and a few bones of a Limicoline bird, most likely a lapwing. We have found the skull, but no more, of the White-tailed or Sea Eagle (_Haliaetus albicilla_). The whole is a strangely small collection considering all the circumstances. We find in the Fens of course everything of later date, down to the drowned animals of last winter's storm, or the stranded pike left when the flood went down. It is a curious fact and very like instinct at fault that in floods the pike wander into shallow water and linger in the hollows till too late to get back to the river, so that large numbers of them are found dead when the water has soaked in or evaporated. An old man told me that he well remembered when pike were more abundant they used to dig holes along the margin when the flood was rising and when it went down commonly found several fine pike in them. This explains why we so often find the bones of pike in the peat, but where did the pike get into a habit so little conducive to the survival of the species? Although we notice at the present day a constant change in the mollusca, their general continuity throughout the long ages from pre-glacial times is a very remarkable fact. The presence of _Corbicula fluminalis_ and _Unio littoralis_ in the Gravels characterized by the cold-climate group of mammals such as _Rhinoceros tichorhinus_ and _Elephas primigenius_, the absence of those shells from the deposits in which _Rh. merckii_ and _E. antiquus_ are the representative forms, and their existence now only in more southern latitudes, as France, Sicily or the Nile, but not in our Turbiferous Series, lay before us a series of apparent inconsistencies not easy of explanation. MAN.