NOTES ON RESENT BLUE BOOKS, II. 139 Both accounts agree as regards the nature, thicknesses and depth of the various beds. But Mr. Whitaker has noted that the "specks of chalk" in the Old Well section are "race," and the classification of the beds in the New Well is his. And we learn from him (Essex Naturalist, Vol. III., p. 46) that the two wells are about 40 feet apart. Dr. Reece gives the surface level of the ground, where the two wells are sunk, as 146 feet above O.D., and he notes many details with regard to the construction, etc., of the Waterworks at Braintree, for which the reader must be referred to the Blue Book. Of the supply he says :— " The supply is on the constant service system, and is sufficient in quantity. Nevertheless the supply is in a somewhat precarious condition. Since the wells have been sunk the level of the water has dropped at the rate of about one foot per annum. In November, 1888, the water in them stood at a depth of 41ft. 2in. from the surface ; in August, 1904, at 56ft. 2in. ; it now stands at about 60ft." Pumping from one well affects the level of the water in the other:— " If at the present time the pumps connected with the New Well broke down pumping would have to cease until the water rose in the wells to the height at which the old pumping machinery could be utilized. The only storage for water is in the service reservoirs ; these do not together hold a day's supply of water." Analysis shows the quality of the water to be good. Considerations of space, however, oblige me to refer readers interested in the sanitary state of Braintree to the Blue Book itself I will only add, therefore, that Dr. Reece heartily agrees with Dr. Fletcher in thinking that a Medical Officer of Health should have a large district, and should devote the whole of his time to public health work, and not be mainly interested in private practice, as at present.