Both Uses

superficial
in
A Sketch of the Past
(Auto-generated)

If I could remember one whole day I should be able to describe, superficially at least, what life was like as a child.†
*
This influence, by which I mean the consciousness of other groups impinging upon ourselves; public opinion; what other people say and think; all those magnets which attract us this way to be like that, or repel us the other and make us different from that; has never been analysed in any of those Lives which I so much enjoy reading, or very superficially.†

Definitions:

(1) (superficial)
relating to a surface rather than to anything deep or penetrating (often of injuries or thinking)
(2) (meaning too rare to warrant focus)