Photoiuicronraplis of Botmiical Studies. 



43. — T.L.S. Stem of " Gossypium Sp." Cotton Plant. 



a h c d 



--■■Ammw 



^ ■ - I ;:j:'3&l A ■■■! 



(I Pith. b Spiral Vessels. c Cambium. 



d Phoem,-containin,t» Cluster Crystals. e Cortical Tissue. / Cuticle. 



