[175]

Ap. 28 /56/

11 & 22

Huxley very strong on every form coming into class; & only I think 5 new orders required.

⸮ is there any Fallacy if ornithological immensely developed wd it have not been order now. If Protolepas developed into class — then wd have made into class. Look at Pachyderms —& Ruminants was very strong on impossibility of coordination of comparing Crustacea & Vertebrata & how impossible to divide them into groups of equal value. Very strong about fossils not falling between classes, but into one or other class. They are Ø

[175v]

classes or orders, mainly because they there has not been found intermediate forms.— I think he seemed to expect that there ought to be something directly between birds & mammals.—

Just agreed that from Silurian to present day a mere fragment of all that has lived.— Upset in my mind developed parallel to embryology.— This not I suspect that if the common group where say birds & mammals have descended was discovered, we shd Know it as intermediate, exactly intermediate is almost impossible.