'Grimm's Law' tells us, among other things, that in Latin and in that part of English which is of Teutonic origin, a large number of words are essentially the same, and differ merely in certain phonetic changes.

Take the word 'father.' In Latin, as also in Greek, it is 'pater.' Now the Latin 'p' in English becomes 'f;' that is, the thin mute becomes the aspirated mute.

The same change may be seen in the Latin 'piscis,' which in English is 'fish,' and the Greek '[pi upsilon rho]' which in English is 'fire.' Again, if the Latin or Greek word begins with an aspirate, the English word begins with a medial; thus the Latin 'f' is found responsive to the English 'b,' as in Latin 'fagus,' English 'beech,' Latin 'fero,' English 'bear.' Again, if the Latin or Greek has the medial, the English has the thin, as in Latin 'duo,' English 'two,' Latin 'genu,' English 'knee.' Now, I find that in many of the words which More mentions this same 'Grimm's Law' will apply; and I am inclined to think that if they were spelled with perfect accuracy they would show the same relation between the Kosekin language and the Hebrew that there is between the Saxon English and the Latin." The doctor gave a heavy sigh.
"You're out of my depth, Oxenden," said he.

"I'm nothing of a philologist." "By Jove!" said Featherstone, "I like this.

This is equal to your list of the plants of the Coal Period, doctor.