VIII ILLUSTRATIONS. 



Page. 



Plate XLI. Small bunch of Tampico fiber 243 



XLII. Strings made by hand from Tampico fiber _ . __ 243 



XL III. Strings made by hand from Tampico fiber . . _ 243 



XL IV. Mexicans making bagging out of ixtle fiber 243 



XLV. Mexicans making bagging out of ixtle fiber 243 



XL VI. Process of twisting ixtle fiber into twine 243 



XLVII. Lechuguilla plant with burro .. _ 248 



XLVIIL Instruments used in extracting ixtle fiber 248 



XLIX. Instruments used in extracting ixtle fiber 248 



L. Articles made from ixtle fiber 250 



LI. A fiber twister 250 



LII. Agave fiber and manufacturing implements 250 



LIII. Cotton fiber and implements 251 



LI V. Brushes of palm leaf and grass . 252 



LV. Hairbrushes made from Tampico fiber 252 



LVI. Brushes made from several kinds of fiber 252 



LVII. Hairbrush made from a fruit of Cereus pecten-aboriginum 



Engelm 253 



LVIII. Cereus pecten-aboriginum Engelm .... 254 



LIX. Organo. Cereus marginatum DC. used for fences near the City 



of Mexico _ . . . . . _ . 255 



LX. Organo, Cereus marginatum DC, used for fences near the City 



of Mexico ._ 255 



LXI. Wooden articles 256 



LXII. Sacred cactus. Mamillaria senilis Lodd 258 



LXIII. Vessels made from Crescentia fruits 259 



LXIV. Gourd used for a water vessel . . 259 



LXV. Lake Drummond, Dismal Swamp .... 321 



LXVI. View near the headwaters of Northwest River, Dismal Swamp. 332 



LXVII. View in the Black Gum swamp _ _ _ . . ._. 352 



LXVIII. Cypress trees in Lake Druminond, bearing Spanish moss 



{ TiUandsia usneoides ) . 420 



LXIX. Black Gum swamp, showing knees of the cypress (Taxodium) 



and arched roots of the black gum (Nyssa bifiora) 420 



LXX. Poison ivy ( Rhtts radicans) in Black Gum swam]) (on the 

 right); cane {Arundinaria macrospemia) and Osmunda 



regalis (foreground) 422 



LXXI. Big cane {Arundinaria macrosperma) along a ditch in Black 



Gum forest _ _ 422 



LXXII. Association of shrubs and small trees along ditches in the 



" light swamp " . . .... . _ _. . 426 



LXXIII. Cypress knees and black gums {Nyssa bifiora) with swollen 



bases _ .... 434 



LXXIV. The Dismal Swamp Canal near South Mills. N. C 44U 



LXXV. Feeder connecting the Dismal Swamp Canal with Lake Drnm- 



mond 410 



LXX VI. Horse-tooth corn on land cleared from the Dismal Swamp 



at Wallaceton, Va ._ ... . 464 



LXXVIL Timothy meadow on land cleared from the Dismal Swamp 



at Wallaceton. Va 464 



Text Figures. 



Fig. 1. Cassia nelson i Rose 135 



2. Qouania pallida Rose 138 



3. Oouunia stipularis DC 138 



