would hv eciui\cik'nt lo 1S.4 per cent of the t(jlal area). The 

 estimated stand of timber is 760 cubic feet per acre, and the 

 bottom and upland types constitute about one third and two 

 thirds respectively. The commonest trees seem to be Quercus 

 velutina (etc.), Q. alba (etc.), Ulmus Americana, Hicoria spp., 

 Quercus palustris, Acer saccharinum, Platanus, Populus 

 DELTOIDES, TUia anieHcana, Fraxinus spp., and Gleditsia 

 triacanthos. The percentage of oaks is almost exactly the 

 same as in Jo Daviess County. 



In the portion of the state covered by "lower Illinoisan" 

 glaciation, a comparatively level plain in the southern half, with 

 more forest than prairie originally, apparently. Hall and Ingall 

 found less than 10 per cent of forest in the counties they investi- 

 gated. But the contemporary census figures give 13.7 per cent 

 of the farm land wooded in the same counties, and 12.5 per cent 

 in the whole group of counties covered with that type of drift, 

 which includes a few additional ones lying farther north and pre- 

 sumably having a little more prairie originally. (Farms cover 

 nearly 90 per cent of the total area now, and the remainder is 

 probably mostly towns and cities.) With respect to types, or 

 topography, the forest is about 20 per cent bottoms, 5 per cent 

 hills or slopes, and 75 per cent level uplands. The estimated 

 stand is 700 cubic feet per acre, and the commonest trees seem to 

 be Queracs velutina (etc.), Q. alba (etc.), Q. stellata, Q. palustris, 

 Hicoria spp., Ulmus americana (etc.), Quercus marylandica, 

 Liquidamhar , Quercus imbricaria, Acer saccharinum,' Fraxinus 

 spp., and Quercus pagodaefolia. The various oaks constitute 

 over 70 per cent of the total, a figure perhaps not exceeded in 

 any other equal area in the world. 



In the unglaciated hill country near the south end of the state, 

 sometimes called the Ozark region, about 20 per cent of the area 

 is wooded, according to Hall and Ingall, which agrees pretty well 

 with the census figures for woodland on farms. (But about 15 

 per cent of the area is not in farms, and practically none of that 

 is prairie, and the settlements cannot cover more than a fraction 

 of it, so that the total forest in 1910 must have been something 

 like 30 per cent.) In the counties selected (by the reviewer) 



