FOSSIL-COLLECTING 103 
tion became more and more modern, as the 
fossils contained in the succeeding strata abundantly 
testify. 
I hope I have written just enough about fossils 
to make you want to know a lot more about them, 
to set you reading books about the ancient life of 
the earth, and above all to induce you to make a 
collection of such fossils as can be got in your 
district. 
Fie. 42.—Fossin STuMP Fig. 43.—Fossir Rz- 
oF A CyoaD (Cyco- MAINS OF A JURASSIC 
DEOIDA MICRO- Pe Fern (OTOPTERIS OB- 
PHYLLA) FROM JUR- TUSA) FROM Lu1assic 
assic DEPOSITS. _ DEPposits. 
Now, you must make your collection in a scientific 
way ; there must be no ignorant guesses, no slipshod 
work. 
Just as you have been advised to collect speci- 
mens of rocks and minerals obtainable in your 
neighbourhoods, so you are counselled to begin your 
fossil collection within an area close at home. You 
should set out to collect specimens of fossil plants and 
animals that illustrate the geology of your district. 
