INDEX 



IStone-lilies, etc. — contd. 



Young of the feather- 

 star — Vaughan 

 Thompson's account 

 estabhshed, etc., 291, 

 292 



•Common feather-star of to- 

 day — resemblance to 

 its remote Cambrian 

 ancestors, 293 



Encrinus Fossilis of Blu- 

 menbach from rock of 

 Jurassic age, 289 



Tossil remains, 287 



Known as fossils before 

 they were found in 

 the living state, 286, 

 293 



Nimaber of, and various 

 species, 289, 290, 293 



Stalks, length of — photo- 

 graph, etc., 287 

 ■Stonesfield, jaw of mammal 



found at, 82, 84, 188 

 ■Stratification of rocks : 



Hard and soft rocli, alter- 

 nate layers : 

 Pictures showing strata 

 of cliff at Lyme Regis, 

 48, 49, 51 



Tilting of strata, 48, 49, 50, 

 51 

 Diagi'am showing effect 

 of bending or undula- 

 tion of earth's crust, 

 52,53 

 Ripple marks preserved 



in Triassic strata, 53 

 Seaford, chalk at, 50 



Time elapsed during form- 

 ation of strata, esti- 

 mate of, Gl, 62 



Stratified rocks : 



Footprints on slabs of Tri- 

 assic rock, 53-55 

 Formation of stratified de- 

 posits from material 

 brought do^\^l from the 

 land bj' rivers, 44 

 Fossilized remains found in : 

 Jelly fish preserved in 

 lithographic limestone, 

 photograph, 48 

 Shells embedded in slab 



of Bognor rock, 45 

 Skeleton of animal found 

 in calcareous rock at 

 Montmartre, Paris, 46 

 Succession from simpler 

 to more complex forms 

 of life — diagram, etc., 

 showing position in 

 wliich animal remains 

 have been found, 60-62 

 Wings of insects, inapres- 

 sion preserved in lime- 

 stone, 46, 47 

 Ripple marks and rain- 

 drops, preservation of 

 marks, 53 

 Thickness of sj'stems of 

 strata, diagram, etc., 

 60, 61 

 Sturgeon — ganoid set of fishes 

 sturgeon belonging to, 

 248 

 Stylonurus — scorpion - hke 



creature, 278, 281 

 Succession of animal life from 

 simpler to more com- 

 l^lex forms — position 

 in strata in which fos- 

 silized remains have 

 been found, 60-62 



326 



