Journal of comparative neurology . d^d ^ a. 1 dd^ ^^^-<r7 ^ O) 03 : CO O,. 59 { i>a,,, .5S) :>(; toiiS Ivoiu a I 1 .lay Id crnhiyo IIhoiikIi Mic saiiic as I in liLimfs M\ lo .!,), and to racililale coinparisun were placed dircu^tly un-der lliein. Consideralde proiiress iuis occurred everywhere. Note Ij thatI he (•(•ntrai canal scam with its small dorsal :ind ventral cavities in the 10 has ^^ivcn place to a 1\ pical cmUryonic central canal, whicii is much wideral the top and hottom than at the center. The constricted jiortion of

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Journal of comparative neurology . d^d ^ a. 1 dd^ ^^^-<r7 ^ O) 03 : CO O,. 59 { i>a,,, .5S) :>(; toiiS Ivoiu a I 1 .lay Id crnhiyo IIhoiikIi Mic saiiic as I in liLimfs M\ lo .!,), and to racililale coinparisun were placed dircu^tly un-der lliein. Consideralde proiiress iuis occurred everywhere. Note Ij thatI he (•(•ntrai canal scam with its small dorsal :ind ventral cavities in the 10 has ^^ivcn place to a 1\ pical cmUryonic central canal, whicii is much wideral the top and hottom than at the center. The constricted jiortion of couiserei)resents the last place for tlu; protoplasm to give way or to be ) i1ie floor |)late is slijilitl>- thicker and less expanded than the roof plate, beingriMnlorced on the outside by white matter and by a rapidly growing notochordlielow .)) A r(>w more nerve fibers and nuclei have appeared in the lateralplates. I) Ihe number of dividing germinal cells has increased while the num-ber of yolk graiudes remains about the same. 5) The first b

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Keywords: ., bookauthorw, bookcentury1900, bookdecade1910, booksubjectmedicine