iiui... nail.- uiHciX n^f nr f. tft. 





Fig. 47. The figure of a liiininous jellyfish (Medusa pellucens) and two luminous 

 shrimp (Cancer fulgens) described by James Macartney in his paper. " Observa- 

 tions on Luminous Animals " in the Phil. Trans, for 1810. Macartney had the 

 advantage of Sir Joseph Banks' notes on sea light in preparing his paper. Sir 

 Joseph was elected a member of the .American Philosophical Society in 1787. 



