Henry's law vs law of nature

Henry's law and law of nature both are nouns.

Word	Noun	Adjective	Verb	Adverb
Henry's law	Yes	No	No	No
law of nature	Yes	No	No	No

As nouns, law of nature is a hypernym of Henry's law; that is, law of nature is a word with a broader meaning than Henry's law:

Henry's law: (chemistry) law formulated by the English chemist William Henry; the amount of a gas that will be absorbed by water increases as the gas pressure increases
law of nature: a generalization that describes recurring facts or events in nature

Other hypernyms of Henry's law include law.

Henry's law (noun)	law of nature (noun)
(chemistry) law formulated by the English chemist William Henry; the amount of a gas that will be absorbed by water increases as the gas pressure increases	a generalization that describes recurring facts or events in nature