34 FIFTY YEARS AGO IN ESSEX. now gone, and with them have disappeared the owls to a great ex- tent. Formerly rats were rarely found in the fields, but now, from the destruction of owls and other so-called vermin, they abound, and may be found in almost every hedge. I think, could a balance be struck, it would be found that the owl-tenanted pollard did not occasion anything like the loss to the farmer now caused by the numerous rats and mice. These "small deer" have now no natural enemies to keep them in check. The destruction, therefore, of pollards, in my opinion, has resulted in great injury to the country generally. Wide hedgerows were also favourable to another class of creatures; snakes were very common, and they are by no means rare even now in my district. The viper occurred very frequently, especially on the borders of the marshes, much more so than in any other part of the kingdom with which I am acquainted. These still are found in larger numbers than most people desire, and the extermination of these dangerous creatures in any district would call forth fewer regrets than that of any other animal, however noxious it might be considered. Enough has been said to show that great changes are occurring in the fauna of the district under consideration. Probably the same changes are taking place throughout the country generally. To naturalists it must be a matter for great regret that so many species of animals and birds should, by man's cruelty and recklessness, be fast approaching the fate of the dodo and great auk—utter extermina- tion. If man's existence depended on this extermination of the lower orders of life, there would not be so much to be said against it; but does his existence—aye, does even his convenience or comfort— require this wicked and cruel and ignorant destruction? Most cer- tainly not! And when it is too late, succeeding generations will not only regret, but will in many ways suffer from, our interference with the continuity of the chain of creation. An illustration of the truth of this statement is found, as before mentioned, in the fact that the destruction of predaceous animals and birds has resulted in the creation of a plague, almost, of rats and sparrows. I am glad, however, to find that the number of persons who will not allow all the so-called vermin and other harmless creatures on their lands to be destroyed is on the increase, and one of the useful pur- poses a Society like the Essex Field Club is to teach that, throughout nature, no creature exists that is not in some way beneficial to the