Conversation so far:
What scientific research did Marie Stopes do?
she studied coal and coal balls and researched the collection of Glossopteris (Permian seed ferns).
Was her research on coal ever published?
This was an attempt to prove the theory of Eduard Suess concerning the existence of Gondwana or Pangaea.
Did she prove the theory of Eduard Suess?
Stopes's passion to prove Suess's theory led her to discuss the possibility of joining Scott's next expedition to Antarctica.
She did not join the expedition.
Did Stopes do any other research?
In 1907, Stopes went to Japan on a scientific mission.
What research did Stopes do in Japan?
She spent eighteen months at the Imperial University, Tokyo and explored coal mines on Hokkaido for fossilised plants.
Were there any findings or published papers from her research in Japan?
She published her Japanese experiences as a diary, called "Journal from Japan: a daily record of life as seen by a scientist", in 1910.
Did Stopes do any more research anywhere?
In 1910, the Geological Survey of Canada commissioned Stopes to determine the age of the Fern Ledges, a geological structure at Saint John, New Brunswick.

Question: How did Stopes do with the research of Fern Ledges?
Self-contained rewrite: How did Stopes do with the research of Fern Ledges?