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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 ?
A Case of Engorged Female Hard Tick in the External Auditory Canal of an Infant.
A comparison of patterns of disease extension in keratosis obturans and external auditory canal cholesteatoma.
Smooth muscle tumor of the external auditory canal. Otolaryngol Head Neck Surg 1997; 116: 231-3.
Dislocated incus may remain in the epitympanic recess or prolapse into the hypotympanium or external auditory canal (2).
The air pressure change produced in the external auditory canal by slap is sufficient to cause medium size perforation in the tympanic membrane, as unveiled from the results of this study that commonest cause of perforation of tympanic membrane was slap (72.9%), while medium sized perforation was commonest perforation (56.2%).
Otoscopy displays a large, bulging mass in the posterosuperior aspect of the external auditory canal.
Type I anomalies are purely ectodermal origin and contain squamous epithelium; this type of anomaly develops medial to the concha, often extending into the postauricular crease and ending in a cul-de-sac at the osseouscartilaginous junction of the external auditory canal. These anomalies are usually superficial to the branch of the facial nerve.
TMJ ganglion within the external auditory canal is rare.
Preoperative Photo and Endoscopic View of the Occluded External Auditory Canal
A case of ceruminous adenocarcinoma of the external auditory canal presenting as an aural polyp.

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