Directions for placing the Plates of the Twelfth Volume. 
"TAB. 27. Labrus ornatus nann - E to face page 502 
28. Fossil Terebratule - ° - - . - 516 
29. Larus Sabini - - - - à - - 522 
30. Tracheæ of Anas spectabilis, mollissima and glacialis - 554 
ome n a n 
The Binder is requested to observe, that as a general Title-page and a Table 
of Contents for the whole Volume are now given, the Title-pages to the sepa- 
rate Parts, and the Table of Contents for Part I., arẹ to be cancelled, 
END OF THE TWELFTH VOLUME. 
CITROEN ANDR ARR pm m 
FRINTED BY RICHARD AND ARTHUR TAYLOR, SHOF-LANFE, LONDON. 
