vi CONTENTS. 
CONTENTS OF No. LXXXIV, N.S., OCTOBER, 1881. 
MEMOIRS: 
PAGE 
The Organ of Jacobson in the Rabbit. By E. Kuixry, M.D., 
F.R.S., Lecturer on Histology and Embryology in the Medi- 
cal School of St. Bartholomew’s Hospital. (With Plates 
XXX and XXXII). : : : = . 549 
On the Further Development of Welwitschia mirabilis. By F. 
O. Bowrr, M.A. Camb., Assistant to the Professor of 
Botany in University College, London. (With Plates XX XIT 
and XXXTIT ‘ - d : ~- Gra 
On the Structure and Significance of some Aberrant Forms of 
Lamellibranchiate Gills. By K. Mirsuxuri, Ph.B., of 
Tokio, Japan, late Fellow of the Johns Hopkins University, 
Baltimore. (With Plate XXXIV) . : ° - 595 
Limulus an Arachnid. By E. Ray Lanxzster, M.A., F.RS., 
Jodrell Professor of Zoology in University College, London 
—Continued . : : : : : » 609 
NOTES AND MEMORANDA: 
Dr. Koch’s New Method of Pure Cultivation of Bacteria . 650 
INDEX ; s 4 c - : 3 . 655 
