In Christian theology, much labour has been spent upon vindicating man's freedom against God's intrusion, or upon blotting out human power in order to leave room for the divine.
Scale-mosses are mounted in the same way, or may be floated out in water like sea-weeds, and dried in white blotting paper under strong pressure before gumming on paper, but are best mounted as microscopic slides, care being taken to show the stipules.
A feature of Lake Albert Edward Nyanza is the thick haze which overhangs the water during the dry season, blotting out from view the mountains.
This is interesting as an example of what was known as memoriae damnatio or the blotting out of a name on account of some dishonourable action.
When the leaves are finely divided, as in Conium, much trouble will be experienced in lifting a half-dried specimen from one paper to another; but the plant may be placed in a sheet of thin blotting paper, and the sheet containing the plant, instead of the plant itself, can then be moved.
There is more sand there than you would use in twenty years as a substitute for blotting paper.
In the case of narrower lines, however, higher dispersion is required to prevent the light of the continuous spectrum on either side of the dark line from blotting out the monochromatic image.