BIG SPRING PRAIRIE. Dil 
loides, with Urtica gracilis as the most abundant her- 
baceous plant; and the following quite common: Koel- 
lia virginiana (L.) MacM. (Virginia Mountain Mint); 
Helianthus giganteus (Tall Sunflower); Thalictrum 
polygamum (Tall Meadow-rue); and Carduus muticus 
(Michx.) Pers. (Swamp Thistle. 
FIELD B. 
The unburned portion was still a natural meadow 
in 1899, and resembled field F. Inaddition to most of 
plants found in field F, the following were quite com- 
mon: Aster Novae-Angliae L.(New England Aster); 
Aster puniceus Ll. (Red-stalk Aster); Euthamia gram- 
inifolia (L.) Nutt. (Bushy Fragrant Goldenrod); Lactu- 
ca Scariola L. (Prickly Lettuce); Asclepias syriaca L,. 
(Common Milkweed); Helianthus giganteus L,. (Tall 
Sunflower); Onagra biennis (L.) Scop. (Common Even- 
ing Primrose); Roripa armoratia (L, ) Hitch. (Horse-rad- 
dish); Lactuca spicata (Lam.) Hitche. (Tall Blue Let- 
tuce); Potentilla fruticosa L. (Shrubby Cinquefoil); and 
Rubus occidentalis (Black Raspberry). 
In the Autumn of 1897, the shaded portion was se- 
verely burned. Asaresult the elms numbered from 1 
to 7 were destroyed. The fire, burning the soil and 
roots from under the trees, caused them to fall, but yet 
did not consume them. 
In 1898, the severely-burned spaces were covered 
with mosses (chiefly Funaria hygrometrica) and a few 
annual herbs. In 1899, some of these spaces contained 
hundreds of seedling elms and poplars; others were 
covered with rosettes of Onagra biennis and Epilobum 
coloratum; others, with Muhlenbergia racemosa; still 
others with Panicum capillare. Kach of the foregoing 
have seeds that are readily disseminated and the ash of 
the muck does not seem to be detrimental to their ger- 
mination. ‘The south portion of the burned area con- 
tains more of the seedling elms and poplars than the re- 
