PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 51 



22. Slippery Elm, Ulmusfulva. 



23. Hackberry, Celtis occidentalis. 



24. Mulberry, Morus rubra. 



25. Sycamore, Platanus occidentalis. 



26. Black Walnut, Juglans nigra. 



27. Butternut, Juglans cinerea. 



28. Shell-bark Hickory, Carya alba. 



29. "Big Shellbark", Oar^/a sw/m^a. 



30. "Little Shellbark", Carya microcarpa. 



31. Black Hickory, Carya tomentosa. 



32. Broom Hickory, Carya amara. 



33. Pig-nut Hickory, Carya porcina. 



34. White Oak, Quercus alba. 



35. Swamp White Oak, Quercus bicolor. 



36. "Chinquapiu" Oak, Quercus muhlenbergi. 



37. Michaux's Oak, Querents michauxi. 



38. Scarlet Oak, Quercus coccinea. 



39. Laurel Oak, Quercus imbricaria. 



40. Water Oak, Quercus palustris. 



41. Red Oak, Quercus rubra. 



42. Black Oak, Quercus tinctoria. 



43. Red Birch, Betula nigra. 



44. Shining Willow, Salix lucida. 



45. Cottonwood, Populus moniUfera. 



40. Swamp Cottonwood, Populus lieterophylla. 



The following additional species grew within half a mile of the woods 

 in question, some of them just beyond its borders : 



1. Tulip Poplar, Liriodendron tuUpifera. 



2. Box Elder, J^egundo aceroides. 



3. Stag-horn Sumac, Rhus typhina. 



4. Black Haw, Viburnum prunifoUum. 



5. Winged Elm, Ulmus alata. 



6. Pecan, Carya oUvccformis. 



7. Spanish Oak, Quercus falcata. 



8. Black-jack Oak, Quercus nigra. 



9. Post Oak, Quercus stellata. 



10. Hornbeam, Carpinus caroUniana. 



11. Black Willow, Salix nigra. 



12. Aspen, Populus tremuloides f 



Making a total of 58 species of trees, all " hard woods," actually found 

 growing on an area of less than one mile square. In addition to these 

 there would be added in certain portions of the river bottoms the fol- 

 lowing, so that it is possible to find as many as 75 species on the same 

 area in the vicinity of Mount Carmel : 

 1. Linden, Tilia americana. 



