The extraordinary number of botanists that were held together in connection with the American Association's meeting in Philadelphia, was a matter of great surprise to the members of the British Association who took part in the proceedings; one, especially, informed the writer of this paragraph that he had never seen or heard of any such gathering in connection with their Association, and he took it as a sign that botany is much more appreciated as a popular study in America than it is in the Old World. No less than sixty were found to join in the excursion to the pine barrens. Notwithstanding the strong attractions of the excursions to the fashionable watering places of Long Branch, Cape May and Atlantic City, and the great excursion to the coal regions, which were all to start at the same time, and a dog-day sun of 900 raged overhead, none of the party regretted that they had given up all for this excursion. Much of the success was no doubt due to the popular enthusiasm for botany, as noted by our British friend, but very considerable is due to the exertions of the leading members of the Botanical Club of the Botanical Section of the Academy and of the Philadelphia Academy; and we are sure we may name especially, in this connection, Professors Arthur, Beal and Bessey, of the former, and Messrs. Redfield and Martindale, of the latter, as particularly deserving of the thanks of all who participated.