The mixing of upper- and lower-case letters shows confusion regarding his identity and could be the writing of a teenager.
It will be observed that the distinction between capital and lower-case letters is one of form, not of size.
In the earlier forms the lower-case letters were rough and uncouth, much resembling the Gothic forms.
The lower-case letters given are a type that may be used in conjunction with the capitals.
The lower-case letters designating certain Fraunhofer lines: a, b, g, h.
Page 28: "Ano" and "Dni" originally were printed with overscores above the lower-case letters.
If there are one enumeration and one subdivision, the Arabic figures and the lower-case letters are used.
Some punctuators enclose in parentheses figures and lower-case letters when used before paragraph-enumerations.
Later the italic characteristics were given to capitals as well as lower-case letters.