Yes, Linseed Oil. I Used To Use

If I Had The Energy, I Would Have Done It All Over The County.

What I Wanted To Do Was To Paint Sunlight On The Side Of A House.

I Use A Retouching Varnish Which Is Made In France, Libert, And That's All The Varnish I Use.

I Trust Winsor And Newton And I Paint Directly Upon It.

The Idea (for The Painting 'room In New York', 1932, Ed.) Had Been In My Mind A Long Time Before I Painted It. It Was Suggested By Glimpses Of Lighted Interiors Seen As I Walked Along City Streets At Night, Probably Near The District Where I Live (washington Square, New York, Fh) Although It's No Particular Street Or House, But Is Really A Synthesis Of Many Impressions.