...medium of the ordinary process of generation. * * The progress of organic life upon the globe is, — that the simplest and most primitive type, under a law to which tfie law of lite production, is subordinate, gave birth to the type next above it, tha.t .this again...

...regular series all the stages in the embryological development of the :higher ; " that Ae sim/ple*t and most primitive type, under, a law to which that of like production is subordinate, game birth -to the type neaet above it, that thw again produced the next higher, and to on to the very...

...upon our earth — and the hypothesis is applicable to all similar theatres of vital being — is, that the simplest and most primitive type, under a law to which that of like-production is subordinate, gave birth to the type next above it, that this again produced the...

...being, is, that the simplest and most * 'Cyclopaedia of Anatomy and Physiology,' Vol. i, Art. 'Animal.' primitive type under a law to which that of like production...this again produced the next higher, and so on to the very highest, the stages of advance being in all cases very small, namely, from one species only to...

...upon our earth — and the hypothesis is applicable to all similar theatres of vital being — is, that the simplest and most primitive type, under a...this again produced the next higher; and so on to the very highest — the stages of advance being in all cases very small, namely, from one species to another...

...more complicated, and this through the medium of the ordinary process of generation ; and finally, that the simplest and most primitive type, under a...this again produced the next higher, and so on to the very highest." , .11Conscious that these presumptuous opinions cannot even be rendered probable by...

...at a certain point in its history, produce some other species. To proceed, at each change of law " The simplest and most primitive type under a law to...this again produced the next higher, and so on to the very * This should certainly be tecond. highest, the stage of advance being, in all cases, very small...

...his own brain. ' The idea/ he says, ' which I form of the progress of organic life upon the globe is, that the simplest and most primitive type, under a...above it, that this again produced the next higher, und so on to the very highest, the stages in advance being in all cast's very small — namely, from...

...upon our earth — and the hypothesis is applicable to all similar theatres of vital being — is, that the simplest and most primitive type., under...type next above it ; that this again produced the neit higher; and so on to the very highest — the stages of advance being in all cases very small,...

...highest and most recent, are to be regarded as a series of advances of the principle of development." " The simplest and most primitive type, under a law...subordinate, gave birth to the type next above it ; this again produced the next higher, and so on to the very highest."* What an immense conclusion,...