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J.S. Haldane

Across
What else did he study later in life (other than science)
What was the main cause of deaths in coal mines
The father of ______
Why was his work so highly regarded
His favorite test subject
Down
Where did he run test concerning low barometric pressures
What is the name of the concept that describes the relationship between oxygen and carbon dioxide in the body
What is the invention he is known for
Where did he conduct most of his research
What did he create for the soldiers in WWI