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CANAL. A trench dug for leading water in a particular direction, and confining it.
     2. Public canals are generally protected by the law which authorizes their being made. Various points have arisen under numerous laws authorizing the construction of canals, which have been decided in cases reported in 1 Yeates, 430; 1 Binn. 70; 1 Pennsyl. 462; 2 Pennsyl. 517; 7 Mass. 169; 1 Sumu. 46; 20 Johns. 103, 735; 2 Johns. 283; 7 John. Ch. 315; 1 Wend. 474; 5 Wend. 166; 8 Wend. 469; 4 Wend. 667; 6 Cowen, 698; 7 Cowen, 526 4 Hamm. 253; 5 Hamm. 141, 391; 6 Hamm. 126; 1 N. H. Rep. 339; See River.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
In an additional case (cases 12), decompression of the postoperative sacral canal was deemed sufficient; however, no neurological recovery was observed.
The block needle trajectory can be visualized and navigated accordingly into the sacral canal. By injecting contrast medium under fluoroscopy, the placement of needle tip within the sacral epidural space can be verified (Figure 3), and intravascular or intrathecal needle tip placement can be detected.
Sagittal reconstructed CT revealed that the second sacral vertebral body was fractured and displaced into the sacral canal (Figure 5(a)).
Although all of the lesions shrank and serum NSE decreased to within the normal range, there were still residual masses in the primary site, left orbit, sacral canal, and bilateral kidneys after five courses of induction chemotherapy (Figures 1(b), 1(d), and 1(f)).