REMOVE

1. plants
2. trees
3. sky
4. soil
5. freight cars
6. railroads

WHAT

1. Visual Works (hierarchy n … (1)
2. Yaddo (1)
3. artists (visual artists) (1)
4. authors (1)
5. black-and-white film (1)

More 

WHERE

1. Yaddo, Saratoga Springs, … (1)

WHEN

1. 1934 (1)
2. 1935 (1)
3. ca. 1934-35 (1)