Illinois has, besides, a county called Cook county, which numbers more than 100,000 inhabitants, and in which Chicago, that city of unparalleled growth, is situated; another county (La Salle), with more than 35,000; three (Adams, Madison, and Peoria), with from 30,000 to 35,000; four (Fulton, Kane, St. Clair, Sangamon), with from 25,000 to 30,000; six (Hancock, Jo Daviess, Knox, Pike, Will, Winnebago), with from 20,000 to 25,000; ten (Bureau, Lake, McHenry, McLean, Macoupin, Morgan, Ogle, Rock Island, Tazewell, and Vermilion),' with from 15,000 to 20,000; twenty-four with from 10,000 to 15,000; forty-two with from 5000 to 10,000: and nine with less than 5000 inhabitants. The counties having the fewest inhabitants are Pulaski and Alexander, the former with 2462, the latter with 2927 inhabitants, contiguous to each other, and being situated in the most southern section of the State.

In order to enable the reader with one glance to survey the comparatively smaller or greater density of the population of the various parts and counties of the State, we here subjoin a population-map of it, wherein the counties are marked and designated, the following columns

corresponding to which contain a statement of the number of inhabitants residing on a geographical square mile in every single county, according to the census of the State returned in 1855:

The entire number of dwellings in the State, was, in the year 1850, 146,544; the number of families 149,153, with 851,470 members, 846,104 of whom were whites, and 5,366 free colored perOf the whites 445,644 belonged to the male and 400,460 to the female sex; of the colored population 2756 to the male and 2610 to the female sex. Among the 851,470 inhabitants, there were 475 deaf and dumb, 257 blind, 249 maniacs, and 371 idiots.

sons.

Of the inhabitants, 736,931 were born in the United States, including also the descendants of the earlier European settlers and the later immigrants; 110,593 in foreign countries; while the birth-place of 3946 could not be ascertained. Of those born in America, 3693 were from Maine, 4288 from New Hampshire, 1381 from Vermont, 9230 from Massachusetts, 1051 from Rhode Island, 6899 from Connecticut, 67,180 from New York, 6848 from New Jersey, 37,979 from Pennsylvania, 1397 from Delaware, 6898 from Maryland, 226 from the District of Columbia, 24,697 from Virginia, 13,851 from North Carolina, 4162 from South Carolina, 1341 from Georgia, 23 from Florida, 1335 from Alabama, 490 from Mississippi, 480 from Louisiana, 63 from Texas, 727 from Arkansas, 32,303 from Ten

* Owing to the fact, that in the year 1855 an incomplete and very imperfect census, which does not enter into details as did the census of 1850, was returned, most of the amounts could only be stated according to the census of 1850. Had a complete census, that besides stating the number of inhabitants, would have paid due regard to the agricultural, manufacturing, commercial, industrial, and social interests of the State, been published, the picture of Illinois this book is intended to place before the eyes of the reader, would no doubt have been a much more complete one; for in this very period of 1850-1855, the brilliant progress of Illinois has been such as no former period ever witnessed.

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