THE 
TRANSACTIONS 
OF 
THE LINNEAN SOCIETY 
OF 
LONDON. 
VOLUME XVIII. 
PART THE SECOND. 
e 
LONDON: 
PRINTED BY RICHARD AND JOHN E. TAYLOR, RED LION COURT, FLEET STREET: 
SOLD AT THE SOCIETY'S HOUSE, SOHO-SQUARE; 
AND BY LONGMAN, ORME, BROWN, GREEN, AND LONGMANS, PATERNOSTER-ROW; 
AND WILLIAM WOOD, TAVISTOCK-STREET, COVENT-GARDEN. 
MDCCCXXXIX. 
