Handbook of practical botany for the botanical laboratory and private student (1908)
Strasburger, Eduard, 1844-1912, Hillhouse, William, 1850-1910 · London, S. Sonnenschein; New York, Macmillan · leaf 181
A cross-section through fresh pine-wood (Fig. 53) shows that the resin canals are filled with resin. This appears in the pre- J7t paration in the form of stronglyrefractive visciddrops of oftenirregular con-tour. If we runin a little al-cohol, the resindrops quicklydisappear. Wecan, moreover,stain… … Fig. 53.—Part of a cross-section through the wood of theScotch fir at the limits of a years ring. /, spring wood ; s, latewood ; t, bordered pit; a, a radial row of tracheides whichdoubles ; h, resin passage ; in, medullary rays { x 240). oils. of the Scotch fir, and lay it on the object-slide in a…
Botany · Plant physiology · Microscopy
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