CONTENTS OF PART I. 
ORIGINAL Pa1‘KR3. 
Page 
Dr. Mitchell oh Sulphites 5 
Mr. R. J. L. Guppy on the MoUusca of Trinidad. .... 10 
Dr. Goding on the Petroleum of Barbados , . 27 
Bibliography of Trinidad . 4S 
Notices of Memoirs. 
Petroleum and Oil-Fields. 59 
Prof. Karsten on ffiiyrichoprion penetrans ............ 63 
Bamboo as a Paper Material. . .. . I ....... ,) 63 
CONTENTS OF PART II. 
Dr. Mitchell on Earth Closets. k 68 
Obituary Notice of Dr. Leotaud. . 71 
Annual Report for 1866 73 
Mr. R. J. L. Guppy on the Cultivation of Knowledge. . 74 
Dr. Mitcholl on the Breeding and Rearing of Horses. . 98 
Dr. DeYerfceuil on Port-of-Spain. ' 104 
Mr. E. j. L. Guppy on the Mollusca of Trinidad 135 
On Boehmeria nivea (Abstract) 137 
Mr. R. J. L. Guppy on Petroleum and Naphtha (Ab- 
stract) 0 ... 138 
Dr. Mitchell on Sulphites 139 
