When he retired in 1946, he put the condenser out of order, possibly because he did not want to leave an improper installation to mislead those who might later continue studies on air wells.
當他在1946年退休時，他將自己的收集器停止運作，可能是因为他不想留下一个错误的设施来誤導那些想继续研究通风井的人。