VERB + ACTINOMETRY
air
ACTINOMETRY + NOUN
chapter, itself, title
PREP.
in, with
noun
the measurement of the heating power of electromagnetic radiation, especially that of solar radiation
the air with its actinometry presents itself in the light of a thermal adjustment , by which the land and sea are prevented from becoming seething hot
the measurement of the chemical or actinic energy of light
ACTINOMETRY (chapter title)