LIST OF ILLUSTRATIONS. xix 



FIG. 



48. Dredge-frame, SHowiNa the Mode of Attachment of the 



Bag 251 



49. The End of the Dredge-feamb, showing the Mode of 



Attachment oi' the Bag 252 



50. Diagram of the relative Position of the Vessel, the 



Weights, and the Dredge, in dredging in Deep Water 253 



51. Dredsb with ' Hempen Tangles ' 257 



52. S£t op Dredging Sieves 260 



53. The Miller-Casella Modification of Six's Self- register- 



ing Thermometer 291 



54. Copper Case for protecting the Miller-Casella Ther- 



mometer 292 



55. Serial Sounding, Station 64 312 



56. SBRiAt Sounding, Station 87 312 



57. Curves constructed from Serial Soundings in the 'Warm'- 



anh 'Cold-Areas' in the Channel between Scotland 

 AND F^ROE 315 



58. Curves coStstructed from Serial and Bottom Soundings in 



THE Channel between Scotland and Eockall 319 



59. Diagram representing the Eelation between Depth and 



Temperature off Eockall 322 



60. Diagram REPRfisENTiNG the Relation between Depth and 



Temperature in the Atlantic Basin :,. 322 



61. Curves constructed from Serial and Bottom Temperature 



Soundings IN the Atlantic Basin 324 



62. Diagram representing the Eelation between Depth and 



Temperature, prom the Temperature Observations 

 taken between Cape Finisterre and Cape St. Vincent, 

 August 1870 327 



63. " EiNE GROSSERE CtTODE VON BaTHTBIUS MIT EINGEBETTETBN 



COCCOLITHBN " (x. 700) 412 



64. ' COCCOSPHBRB ' (x. 1000) 414 



65.- EossELLA velata (sp. n.). Natural size. (No. 32, l870) ... 419 



66. Htalonema lusitaniccjm, Barboza du Bocage. Half the natural 



size. (No. 90, 1869) 421 



67. AsKONEMA setubalense, Kent. One-eighth the natural size. 



(No. 25, 1870) 429 



68. Flabbllum distinctum. Twice the natural size. (No. 28, 1870) 432 



69. Thecopsammia socialis, Pourtales. Once and a half the natural 



size. (No. 57, 1869) 433 



70. Pentaceinus ASTBRiA, LinnEeus. One-fourth the natural size ... 436 



71. Pbntacrinus wtville-thomsoni, Jeffreys. Natural size. (No. 



17,1870) 443 



