COMMITTEE OF BRITISH ASSOCIATION. 181 compared with those taken in another, and similar. Thus a general list of plants representative of the association or area is finally arrived at. In a similar way are built up the lists of plants for all associations, and information obtained concerning their biological conditions. " It will readily be seen that by our methods the plant species inhabiting a district are arranged in the associations as they are actually found, and not, as is almost invariably the case in local floras, in the groupings of the Natural Orders. In certain ways this alternative point of view is very advantageous, alike to the beginner whom it is sought to interest in Nature study as to the maturer naturalist, who can find in the solution of oecological problems motive for endless study and enjoyment. There is a danger of thinking that the robbing a countryside of its rarest plants, to be carried home, dried, labelled, and buried in sheets of paper, is the beginning and end of botany. The present method puts no premium on this; the commoner plants are the most observed, and yet there is a place in our scheme for the rarest. By regarding the trees, shrubs, flowers, grasses, mosses and moulds as individuals of one community, dependent in a variety of ways upon one another, rather than as items meet to be labelled, and put into compartments, one is led to study the biology of the vegetable kingdom, to use the microscope, and through it to see visions of a thousand problems, some answered, many awaiting answer. And yet the syste- matic side of the science is not obscured." Here in Essex, it seems to me, there is room for attempting to carry out such a vegetation-survey as that commenced in the north. Our Club has contributed materially to a knowledge of the flora of the county; but the new method is to view the local plants in their relation to soil, climate, and other physical con- ditions, which are controlling features in plant-distribution. A map of Essex showing the vegetation-districts sketched out on the new lines has yet to be constructed. Not that the floristic method of plant-study is in any way to be displaced ; it is simply to be supplemented by a general view of the distribution of vegetable life, capable of cartographical expression. A short communication was sent to Southport by our esteemed member, Mr. Holmes, calling attention to certain omissions in the new edition of some of the Ordnance Survey Maps, on the 6in. scale. On the older map there occurs at one spot in Greenwich Park the words "Roman Remains," and at a neighbouring place just outside the park, the map gives the information, "Roman Remains found here." In the newer map of the same district (edition of 1894-96) these words' are omitted. The curtailment of any archaeological information known to be well founded, is a matter to which local societies may fairly call attention in relation to the maps of their respective localities.