Unfortunately, the original source is not currently available on the internet and can only be found in a few libraries around the world, however Korthals' classification was reviewed and confirmed and his original latin description was included in a 1897 publication by George Haviland.
The original source is not currently available on the internet. This is unfortunately. The original source can only be found in a few libraries around the world. This was unfortunately. Unfortunately Korthals' classification was reviewed and confirmed. This was however. His original latin description was included in a 1897 publication by George Haviland. This was unfortunately.