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we have arrived at the Stouesfield slate of the Oolitic period, 
we come upon mammals belonging to four different species, and 
three distinct genera; while, in the Purbeck beds of the same 
period, mammalian life appears to have been much more general, 
for, in one place, the remains of as many as eight or nine 
genera, belonging to fourteen different species, have been dis- 
covered within an area of 500 yards square, all of the Marsupial 
order. We now reach the Tertiary and Post-Tertiary periods, 
where the order of mammals ranges through every form, until 
w r e come to elephants, tigers, stags, &c., which are only varieties 
of the corresponding species of our present times. 
19. Now throughout this long course of progressive develop- 
ment in structural organization Geology discloses no appearance 
of Man until the last period which I have named. It is perfectly 
true that a higher antiquity is assigned to Man by many geolo- 
gists than we have hitherto been in the habit of allowing, 
inasmuch as human remains have been found in gravel-beds 
and bone-caves alongside of extinct animals. But that much- 
mooted question bears in no way upon my present purpose. 
What I am now observing is, that Man stands out at the end 
of this long chain of progressive organization ; and is therein 
proclaimed by Geology as its highest masterpiece. Whether 
he has been upon the earth 6,000 years or 60,000, the records 
of the rocks can produce no evidence of his existence until all 
other forms of mammalian life had been previously perfected ; 
nor can it show any other typical form of organization which 
has succeeded him. This is one of the last revelations of 
natural science. 
20. Such being the case, then, I ask you to notice how 
exactly Scripture agrees with this code of scientific belief. The 
narrative of the creation of the universe in six natural days may 
be as unscientific as you please. The lines of divergence by 
which their respective narratives travel may be as wide as you 
like to call them ; but when we come to the close of each, you 
observe they meet at exactly the same point. Man is the 
great heading-up of the work of creation, the crown and master- 
piece of the whole, beyond which no record can be found. In 
this respect, therefore, Divine revelation and the revelations of 
natural science are absolutely and precisely identical. 
21. Let us now look at one or two facts in connection with 
Physiology. I refer to the correlation of birds and fishes, and 
to their marked sepai’ation in certain particulars from the 
organization of beasts. In the first place, birds and fishes are 
alike oviparous ; while beasts are viviparous. In the next place, 
the methods of locomotion, both in birds and fishes, are analo- 
gous ; the flight of the first being produced by the movement 
