vill Inst of Illustrations vn the Test. 
Diagram illustrating the types of relationship that ae ae graphs ae 
of organisms may have to one another é 5 Bae Let Gill 
Graphic representation of differences between several genera of Paleozoic 
Echinoids : ‘ ; ; : : 52362 
Diagrammatic section of Btanepa lun F . 397 
Portions of sections of mutations K, y, 6 from gens Canine Cc ulindaien 398 
Diagrams of some stages in serial reduction of the fossulz in Carboniferous 
Corals. ; é : : $ ‘ : oh) 
Section of Vnpiirentts dalanolen é ; - 400 
Graphs representing stages in the development of Omnpinn cornucopie . 401 
Graphs representing stages in the evolution of Zaphrentis delanowei _. 402 
Graphs representing the mutations of the gens Caninia cylindrica . . 405 
Graphic representation of average silica percentage of a number of Ae 
igneous rocks . 3 : 5 A a 437, 438 
Sketch-map of the wwinekecneld Dele : : é , . 442 
Section from southern margin of dyke to middle of ‘es ‘ 6 - 443 
Map of country north of Wackerfield : : ; B . 445 
Sketch section to show relation of zones to granite bee : : 6 wr 
Sketch section from Crowan Beacon to Gwinear. ; ‘ iiss lu) 
Sketch section from Crowan Beacon to Gwithian é : : . 510 
Sketch section from Nine Maidens to Portreath : : ; ee ONC: 
Part of one of the paired ambulacral areas of EZ. smellii ; . $33 
Arrangement of tubercles : é : : . oot 
Outlines of profiles of three other tenes oe E., els b : . 935. 
Diagrammatic sketch of section in Kast Thickley Quarry, 8. Durterne 539 
Sketch of specimen of Productus horridus Sow. j . : eA 
Diagram illustrating paper cn eruption of caoks : é : an Mall, 
