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STEM AND LEAF STRUCTURE OF ASPEN AT DIFFERENT ALTITUDES IN COLORADO. 



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STAINING WOODY TISSUES WITH SAFRANIN AND PICROANILIN BLUE. Science 59 '. 



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THE MOLECULAR STRUCTURE OF THE CELL WALL OF FIBERS. (BevieW Of Several 



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the calculation of the mean fieer-length of a tree. Jour. Forestry 19: 

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A MORPHOLOGICAL AND CYTOLOGICAL STUDY OF REPRODUCTION IN THE GENUS ACER. 



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THE RELATION OF AGE TO SIZE IN CERTAIN ROOT CELLS AND IN VEIN ISLETS OF 



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A MODIFICATION OF A JUNG-THOMA SLIDING MICROTOME FOR CUTTING WOOD. Bot. 



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the origin of ray tracheids in the coniferae. Bot. Gaz. 50 : 101-116. 1910. 



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 the structure of the stomata of certain cretaceous conifers. Bot. Gaz. 

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THE STRUCTURE AND DEVELOPMENT OF THE BARK IN SASSAFRAS. Bot. GaZ. 41 : 



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the biology of buds and twigs in winter. Plant World 8 : 78-79. 1905. 



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DEVELOPMENT OF THE EMBRYO SAC AND YOUNG EMBRYO OF HICORIA PECAN. Amer. 



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c\.ological studies in the betulaceae. Bot. Gaz. 87 1 331-363; 88: 383- 

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A PHYTOGEOGRAPHIO AND TAXONOMIC STUDY OF THE SOUTHERN CALIFORNIA TREES 



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the English names of some trees. Soc. Amer. Foresters Proc. 11 : 233-239. 

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studies in juglans, 1-2. Calif. Univ. Pubs., Agr. Sci. 2 : 1-46, illus. 1913. 



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THE CULTIVATED POPI ARS, WITH REMARKS UPON THE PLANTING OF GROUNDS. 



Cornell Univ. Agr. Expt. Sta. Bull. 68, 36 pp., illus. 1894. 



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two races of aspen. Jour. Forestry 19 : 412-413. 1921. 



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Canadian willows of sections longifoliae. Canad. Field Nat. 40 (8) : 

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