XVI CONTENTS. 



Cuttlefish Cuttle-bone Loligo vulgaris Edible Cuttle- 

 fish Chemical nature of their Colour Nautilus Argo- 

 nauta Carinaria. 



GASTEROPODA : The Tyrian Purple Curious Properties of 

 the Colouring Matter of Sea-snails Murex Irandaris 

 Purpura lapillus Helix fragilis Yandinafragilis Pur- 

 pura patella Murex truncatus Experiments with 

 American Sea-snails Colour furnished by Whelks 

 JBuccinum Influence of Light upon the Production of 

 their Colour Process used by the Ancients to dye 

 Purple Uric Acid in Gasteropoda Murexide Snails 

 that are Beared for Food, etc. Helix pomatia Snail- 

 gardens H. aspersa H. horticola Arion rufus Ana- 

 lysis of Snails Limacine Helicine Uric Acid in If. 

 pomatia Turbo littoreus, or Periwinkle Haliotis 

 Snails used as Money Cyprcea moneta Other Species 

 of Cypraea " Love-shells " Conus Oliva Ovula 

 Strombus gigas Cassis Turbinella Murex Buccinum 

 Curious Experiments with Snails Slugs Limax 

 maximus L. agrestis, 



BIVALVES : Mytilus edulis, or Common Mussel Its Culture, 

 etc. Hurtful at certain seasons M. cJwros M. Magel- 

 lanicus M^ area M. liihopliagus Ostrea edulis, or 

 Common Oyster Details concerning its Artificial 

 Breeding and Propagation Acclimatisation of Mol- 

 lusca Fishing on the Plessix bed Spondylus Car- 

 dium edule, or Cockle SolenPecten maximus Tellina 

 Tridacna gigas Chama Cameos Stone Cameos and 

 Shell Cameos Chinese Cameos Pearl Oysters 



