The Journal of geology - Wikimedia Commons
a consonant-group thus containing r ... while the undesignated, theacute, has sunk into in- ... one of them to a semivowel, or by development of a semi-.
a consonant-group thus containing r ... while the undesignated, theacute, has sunk into in- ... one of them to a semivowel, or by development of a semi-.