Editing 1930 in science (section)

==Deaths==
* January 13 – [[Sebastian Ziani de Ferranti]] (born [[1864 in science|1864]]), [[British people|British]]-born electrical engineer and inventor.
* January 19 – [[Frank P. Ramsey]] (born [[1903 in science|1903]]), [[English people|English]] [[mathematician]] (jaundice).
* August 6 – [[Joseph Achille Le Bel|Joseph Le Bel]] (born [[1847 in science|1847]]), [[French people|French]] [[chemist]].
* August 15 – [[Florian Cajori]] (born [[1859 in science|1859]]), [[Switzerland|Swiss]]-born American historian of mathematics.
* August 18 – [[Gabrielle Howard]] (born [[1876 in science|1876]]), British [[Plant physiology|plant physiologist]].
* October 15
** [[Herbert Henry Dow]] (born [[1866 in science|1866]]), Canadian American industrial chemist.
** [[Ernest Henry Wilson|E. H. "Chinese" Wilson]] (born 1876), English [[plant collector]].
* September 1 – [[Peeter Põld]] (born [[1878 in science|1878]]), [[Estonia]]n politician and pedagogical scientist.
* October 27 – [[Ellen Hayes]] (born [[1851 in science|1851]]), American mathematician and astronomer.
* November 5 – [[Christiaan Eijkman]] (born [[1858 in science|1858]]), [[Dutch people|Dutch]] [[physiologist]].
* December 25 – [[Albertina Carlsson]] (born [[1848 in science|1848]]), Swedish zoologist.