INTRODUCTION TO SOCIOLOGY

227

Each species occupies a region the limits of which are fixed by natural obstacles, such as the sea, deserts, and mountains, or by climatic conditions. Plants sometimes surmount these first obstacles, thanks to their natural means of dissemination, or even

ERRATUM.

Through an oversight, the table of suicides in Belgium by sexes, from 1836 to 1900, appearing on p. 79 of the July number of this JOURNAL, in M. De Greef's article on "Introduction to Sociology," contains several mistakes. Columns i and 2 ("Male" and "Female") have been transposed, and some of the numbers, especially in the last column, are erroneous. A corrected table is printed below :

Male

Female

Total

General Increase

Increase for Females

1836-30 . .

?

?

178

100

?

1840-49

I9<>

47

242

138

100

1850-60

225

CI

276

TQC

108

1861-70

?

?

263

I4Q

?

1871-80

373

68

441

248

143

1881-90

MI

107

658

370

227

1891

648

1 2O

760

432

2";";

1892

673

122

70 1 ;

447

2^7

1893 . .

746

1 19

825

483

e

1894

6Q3

146

839

471

310

1895 . ,

660

I52

812

41:6

12$

1896

668

141

809

4^4

300

1897

607

14"!

751

422

30Q

1898

673

1=50

823

462

318

i8o<3 . .

643

138

781

430

203

1900

658

128

786

447

272

1891-1900

613

136

740

421

288

surface and configuration. We see that it is the same for the

several varieties of the human species, not only by reason of their