144 
THE PERIODICAL CICADA. 
1846. Ohio. — Eastern part, extending west to Scioto River and Sandusky on Lake 
Erie, extending over twelve counties in 1829, 1846, and again in 1863, 
1846. Virginia.— Southeastern part in 1829, 1846, and will in 1863. 
1846. Pfr^inia.— Lewis County, in 1795, 1812, 1829, 1846, and will in 1863. 
1847. About Wheeling, in Virginia, in 1830, and will again in 1847, 1864. 
1848. New York. — In Monroe, Livingston, Madison, and adjacent counties in 1797, 
1814, 1831, 1848, and will in 1865. 
1849. Pennsylvania. — In Armstrong, Clarion, Jefferson, Chemung, Huntingdon, Cam- 
bria, Indiana, Butler, Mercer, Beaver, and in nearly all the western counties 
in 1832, 1849, and will in 1866. 
1849. Ohio. — In Mahoning, Carroll, Trumbull, Columbiana, and adjacent counties, 
especially in Columbiana in 1812, 1829, 1846, the eastern district lapping over 
this in that county ; appeared in this district in 1815, 1832, 1849, and will 
in 1866. 
1850. Virginia. — County ( ?) and adjacent territory in 1833, 1850, and will in 1867. ' 
1851. Maryland, Pennsylvania, DeJairare, Virginia. — Beginning at Germantown, Pa. ; 
south to the middle of Delaware; west through the eastern shore of Mary- 
land, upper part of Anne Arundel; west through the District of Columbia, 
Loudoun county, Va., where it laps over the south Virginia district from the 
Potomac to Loudoun County some 10 to 20 miles in width, and [in] this strip 
of territory they appear every eighth and ninth year. Thence the line 
extends through the northern counties of Virginia and Maryland to the 
Savage Mountain, and thence along the southern tier of counties in Pennsyl- 
vania to Germantown. The whole territory embraced in these boundaries is 
occupied by the locusts. Appeared here in 1766, 1783, 1800, 1817, 1834, 1851, 
and will again in 1868. 
1851. Ohio. — Cincinnati; Franklin, Columbus; Piqua, Miami County. This district 
extends into Indiana to New Albany, Madison, Indianapolis, to the Wabash 
Paver, Terre Haute, and to LouisviPe, Ky., in 1834, 1851; will again in 1868. 
1852. Massachusetts. — Bristol County, Dearheld, Hampshire, and to Fall River in 
1767, 1784, 1801, 1818, 1835, 1852, and will in 1869. 
1853. Ohio.— Vinton County in 1853, and will in 1870. 
1853. Illinois.— \n Jo Daviess County, and will in 1870. 
1854. Illinois. — In Winnebago, Menard County, and neighborhood in 1854 ; again in 
1871. 
1855. Maryland. — On the old Liberty Road leading to Carroll, and Adams County, 
Pa., and on the Winden (?) Mile Road extending to Carlisle, Pa., in 1838, 
1855, and in 1872. 
1855. Kentucky. — About Frankfort, Lexington, and Flemingsburg, extending to 
Meigs and Galia counties, Ohio, in 1838, 1855, and in 1872. 
1855. Maryland. — Eastern Shore from Cecil County to Worcester in 1838, 1855, and 
in 1872. 
1855. Massachusetts.— Barnstable County in 1770, 1787, 1804, 1821, 1838, 1855, and in 
1872. 
1855. Virginia. — Kanawha County, extending only 15 miles each way, in 1838, 1855, 
and m 1872. 
1855. North Carolina. — In Buncombe and McDowell counties in 1855; again in 1872. 
[N. B. — There is some doubt whether this district is not a 13-year district 
The locusts appeared there in 1855, at all events.] 
[Note on the Smith Register. — An examination of the above register of appear- 
ances, prepared by Dr. Gideon B. Smith, at once indicates the painstaking care 
which Dr. Smith must have devoted to the subject, and surprises one with the 
1 This evidently refers to Brood NXI, which is known from eleven counties in Vir- 
ginia (see p. 33). 
