Ixx. CONTENTS. 



PAaB 

 THE DEVELOPMENT HYPOTHESIS IN ITS EMBRYONIC STATE. — OLDEB 



THAN ITS ALLEGED FOUNDATIONS 244 



FINAL CAUSES. — THEIR BEARING ON GEOLOGIC HISTORY.— CONCLUSION 268 

 NOTES . . . , 301 



NOTE ADDRESSED TO MBS MILLER BY MR SALTER, OP THE GEOLOGICAL 

 SURVEY, UPON THE CHAPTEll ON " THE FISHES OF THE SILURIAN 

 ROCKS, UPPER AND LOWEB*' . i ... 315 



NOTES BY HUGH MILLLER, ON A SUITE OF FOSSILS ILLUSTRATIVE OF THE 



STRUCTURE AND RELATIONS OP THE EARLIER GANOIDS . 317 



PIPER BY HUGH AIILLER, ON A CURIOUS SUITE OF FOSSILS FROM THE 



LOWER OLD RED SANDSTONE OF SCOTLAND ... 888 



