Page:Willich, A. F. M. - The Domestic Encyclopædia (Vol. 1, 1802).djvu/459

C A N the ground, which is supplied vim water from rivers, springs, &c. in order to make a navigable commu- nication between different place?. There are various circumstances, upon which the particular opera- tions, necessary for constructing navigations, depend ; and which consequently increase, or diminish, the labour and expence of execut- ing them: such as, the situation of the ground ; the vicinity to, or connection with, rivers ; the facili- ty or difficulty with which , the necessary quantity of water can be procured ; and many other re- quisites. The utility of canals to a trading nation are too well known ; we shall therefore only refer to the following, among the many works that have lately been published on this important subject, in which the structure, economy, and ad- vantages of canals are amply and perspicuously treated, viz. l.Mr. Fulton's '• Treatise on Canal Navigation j" 4to. ISs. Taylor, iyyO. The author displays an in- genuous disposition, and a sincere wish to promote useful improve- ment. His work is well written, the engraving beautifully executed, ar.d the whole is replete with use- ful information. 2. Mr. Ch.?- i 's " Oiservaiions o)i the vari- ous si/stews of Canal Navigation;" 'Ito. (is. Taylor. This performance also abounds with useful instruc- tion, and forms a valuable and ne- cessary addition to Mr. Pulton's work. 3. Mr, Tatham's " On 1 1. e Political Economy of Inland Navigation, I nidation, and Drain- age, i" -ito. ll. O's. Fauider, IJQg. This work likewise contains some ■ble hints, and is not destitute of utility. On the subjeel of clearing navi- C A -N- lr-r gable canals of weeds, we sliall treat under the bead oi Wkkds. CAN ARY BIRD, or Fringilla canaria, is a species of finch, and a native of the Canary Islands. It is supposed to have been first brought to Europe in the 1 4th cen- tury. At a still later period, ca- nary-birds were more generally introduced into Germans, where the greatest attention is paid to the breeding and rearing of these beau- tiful creatures, which are much celebrated for their song, and do- cility in imitating musical notes. Hence they have become a source of considerable emolument to the Tvrolese, who export vast num- bers to various parts of Europe, and also to England. If treated with proper pare, they will breed, and become as vigorous and health- ful in this country, as in their na- tive islands. These delicate birds are subject to- a variety of diseases : to pre- vent which, the greatest care should be taken to provide them, with pure water and simple food. During the time of moulting, which often proves fatal to many of them, a little white vine drop- ped on a piece of biscuit, or sugar, will be of considerable service. CANARY GRASS, or Phalaris, L. a genus of plants, comprising twenty-lour species^ of which two only are cultivated in England ; viz. 1. The Caranicnsis, or the ma- nured canary-grass, which is raised from seed, and roquires the s.oil to be made very fine and light on the surface. It is sown the first dry week iu February. The plant is generally ripe in die beginning of September, and requires to be a considerable time in the held, but it is seldom injured by wet wea- ther.