Arrange in a sequence of chronological order.
1. Establishment of a library company in Philadelphia
2. The Medical Repository
3. The Journal of Industrial Hygiene
4. American Philosophical Society
1
1, 2 ,4, 3
2
1, 2, 3, 4
3
4, 3 ,2, 1
4
2, 1, 4, 3
Arrange in a sequence of chronological order.
1. Establishment of a library company in Philadelphia
2. The Medical Repository
3. The Journal of Industrial Hygiene
4. American Philosophical Society