Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-topics=Work%3A%3AScience&f2-topics=Daily+Life+%26+Identity%3A%3AClass&f3-institutions=Chicago+Academy+of+Sciences+%2F+Peggy+Notebaert+Nature+Museum&f4-institutions=Chicago%20Academy%20of%20Sciences%20/%20Peggy%20Notebaert%20Nature%20Museum&f5-cities=Northfield