INDEX. 



527 



291 ; Breguet's metallic^thermometer, 

 293 ; Negretti and Zambra's thermo 

 meter, 293. 



Thomson, Sir William, F.R.S., thermo 

 meter in a sealed glass tube, 296. 



Tisiphonia agariciformis, 74, 167. 



Toxopneustes brevispinosus, 459. 



Tripylus fragilis, 118, 459. 



V. 



Variation, 9. 



Ventriciilites simplex, 483 ; outer surface, 



484 ; section of the outer wall, 485. 

 Verticordia acuticostata, 464. 



W. 



Russel, 



on natural 



Wallace, Alfred 

 selection, 8. 



Waller, Edward, dredging off the South 

 coast of Ireland, Hebrides, and Shet 

 land Islands, 121 ; on the fauna of the 

 Hebrides, 267. 



Wallich, G C., M.D., F.L.S., the North 

 Atlantic Sea-bed, 24, 271, 302. 



Wright, Professor Perceval, deep dredg 

 ing off the coast of Portugal, 276. 



Z. 



Zone of deep-sea corals, 16. 

 Zoroaster fulgens, 153. 



THE END. 



