Dates of publication of the several parts contained in this volume 
Part 1. Pages 1-32 . . October, 1901. 
,, 2. ,, 33-64 . December, 1901. 
,, 3. „ 65-104 . . March, 1902. 
,, 4. ,, 105-144 .. . June, 1902. 
,, 5. ,, 145-172, and ix-xii . October, 1902. 
,, 6. ,, 173-212.. . April, 1903. 
,, 7. ,, 213-244 . August, 1903. 
,, 8. ,, xiii-xliv. October, 1903. 
,, 9. ,, i-viii, and 245-252 . November, 1903. 
Dates of publication of previous volumes : 
Transactions op the Watford Natural History Society. 
Vol. I. (pp. lxiv and 248.) . August, 1878. 
,, II. (pp. lx and 260.) . June, 1880. 
Transactions of the Hertfordshire Natural History Society. 
Yol. I. (pp. lxviii and 272.). May, 1882. 
,, II. (pp. lxviii and 286.).. . May, 1884. 
,, III. (pp. lxxii and 274.). . March, 1886. 
,, IV. (pp. lii and 224.) . June, 1888. 
,, Y. (pp. xlviii and 224.). May, 1890. 
,, VI. (pp. lxx and 204.) . July, 1892. 
,, VII. (pp. lii and 244.) ... April, 1894. 
,, VIII. (pp. lxxii and 212.). November, 1896. 
,, IX. (pp. lxxviii and 252.) . August, 1898. 
,, X. (pp. lxxvi and 248.). . July, 1901. 
