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trasts." Trees were discussed with special reference to climatic 

 requirements, requirements as to soil and situation, and capacity 

 for bearing shade. 



On May 26, the fourth forestry lesson was given at the New 

 York Botanical Garden, with Dr. Arthur Rollick as instructor 

 and guide. The subject for observation and discussion was 

 "Seedling Trees — comparison with mature trees." Attention 

 was first directed to the cotyledons — the primitive leaf-forms — 

 which are rounded or elliptical and entire, and to the fact that 

 the first leaves are nearly always simpler than the later mature 

 leaves ; in the white oak and red oak, for example, the leaves 

 are at first entire and later lobed ; in the ash, simple at first, 

 later compound ; in tulip-tree, orbicular at first, later cuneate or 

 emarginate above and lobed. The bark characters of seedlings 

 and older trees were illustrated. The roughening of the bark 

 with age is usually due to growth in diameter of stem or trunk 

 and the consequent rupture of its outer covering, but may be 

 caused by subsequent secondary growth as is seen, for example, 

 in the corky excrescences of the Liquidambar. 



The Decoration Day excursion, May 30, was to Hempstead, 

 Long Island. Miss Fanny Mulford and Mrs. N. L. Britton were 

 the guides, and fifteen others were present. The first station 

 visited was a SpJiagnnin bog between the kennels of the Meadow 

 Brook Hunt Club and the estate of Mrs. O. H. P. Belmont, 

 where fine specimens of Droscra rotundifolia, Avetlmsa bidbosa, 

 Andromeda Mariana and Viola notabilis were secured. Luncheon 

 was served near Place's Pond where the whorled Pogonia, Isotria 

 vcrticillata was found in abundance and fine specimens oi Arisaema 

 piisilliiDi. Li a white cedar swamp near Merrick, Dryopteris sinni- 

 lata and IVoodzuardia arcolata and W. virginica were found in 

 abundance, also fruiting specimens of Mniiivi hornuin. 



