1002. Collections of abridged descriptions of plants in what are called gardens (Horti) or catalogues, form perhaps the most useful kind of botanical books for the practical gardener. The most complete of these hitherto published is our Hortus Britannicus, from its more extensive use of abbreviated terms than any other work of the kind, and from the use of numerous pictorial signs. A single line of this catalogue expands into a long paragraph of ideas in the mind of the botanist or gardener ; and the work might easily be rendered a Species Plantarum, by introducing short specific characters in single lines on the page opposite the catalogue lines, as in Galpine's Compendium of the British Flora. It might farther, by subjoining notes to all the useful or remarkable species as the bottom of every page, be rendered a history of plants, including their uses in the arts and manufactures, and their culture in agriculture and gardening. Such a work is our Encyclopï¾µdia of Plants, having, in addition, engravings of one or more species of all the different genera.