CONTENTS. 
XVI. 4 New Systematic Arrangement of Vertebrated Animals. By C. L. 
Bonaparte, Prince of Musignano, F. M. L. S., So. page 247 
XVII. Description of a new Genus of Plants belonging to the Natural Family 
Bignoniaceæ. By Davin Dow, Esq., Libr. L. S., Prof. Bot. King’s Coll. 
VFC S SOUS ee 
XVIII. Descriptions of the Indian Species of Iris. By Davin Don, Esq., 
Libr. L. S., Prof. Bot. King’s Coll. Lond. . . . . . 809 
XIX. 4n Account of the Indian Species of Juncus and Luzula. By Davin 
Don, Esq., Libr. L.S., Prof. Bot. King's l., . = . — T 
XX. Description of the Lepidosiren annectens. By Ricuarp Owen, Esq., 
F. R. S. F. L. S. F. G. S., Hunterian Professor in the Royal College of Sur- 
geons, London. e c c 
XXI. Observations on the Spongilla fluviatilis. Zn a Letter to the Secretary. 
By Joux Hoc, Esg., M.A. F. R. S. L. S. & C. P. s. 363 
XXII. Further Observations on the Spongilla fluviatilis; with some Remarks 
on the Nature of the Spongie Marine. In a Letter to the Secretary. 
Hy Joun Hoco, Esg, M.A. ERS LS. & CPS. . . e 
XXIII. Illustrations of the Relationships existing amongst Natural Objects, 
usually termed Affinity and Analogy, selected from the Class of Insects. 
By 3.0. Wasrwoon, Eg, FELS, Sg.. 
XXIV. 4 Note upon the Anatomy of the Roots of Ophrydeæ. By Jonn 
Linpiey, Ph.D. F.R.S. & L.S., Professor of Botany in University Col- 
JJ! 50. 4 e 
