The practice of surgery . Fig. 415.—Sylvian line connectsexternal angular process, A, with point75 per cent, of distance A to /. Super-ior Eolandic point, R, lies | inch behindmidnaso-iiiionic point (50 per cent.)-Inferior Rolandic point, R, lies at junc-tion of Sylvian line with perpendicularto Reids base-line, R-B, at preauricularpoint. Sylvian point lies at junction ofSylvian line with line from meatus to 25per cent, of naso-inionic line cCushing inKeens Surgery).. Fig. 417.—NO = Kochers equator-ial line, nasion to inion. XL = PoiriersSylvian line from nasion to = Kochers anterior

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The practice of surgery . Fig. 415.—Sylvian line connectsexternal angular process, A, with point75 per cent, of distance A to /. Super-ior Eolandic point, R, lies | inch behindmidnaso-iiiionic point (50 per cent.)-Inferior Rolandic point, R, lies at junc-tion of Sylvian line with perpendicularto Reids base-line, R-B, at preauricularpoint. Sylvian point lies at junction ofSylvian line with line from meatus to 25per cent, of naso-inionic line cCushing inKeens Surgery).. Fig. 417.—NO = Kochers equator-ial line, nasion to inion. XL = PoiriersSylvian line from nasion to = Kochers anterior meridiandrawn 60° from meridian line at midsag-ittal point; lies over precentral convolu-tion and crosses XL at Sylvian point,Sfs = superior frontal sulcus at one-third of MA; Sfi = inferior frontal sul-cus at two-thirds of MA. MP =Kochers posterior meridian, also 60°from midline. Lines crossing at Sts =superior temporal sulcus (Gushing inKeens Surgery).

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsurgery, bookyear1910