harvey oswald after he assassinated president kennedy, and even -- floridation in the water became associated with communism. this grouping represents the environmental movement. this is rachel carson's groundbreaking book, silent spring. her research on the effects of chemicals on the earth helped to launch the environmental movement. these bumper stickers and buttons are part of the collection, and they are actually parts that i really enjoy working with. i love the fact that with just a few words, you can get a message across that really says it all, let this little, tiny sticker rush, from the flushal organization -- rush, from the national organization of women talking about rush limbaugh. we have a very large gathering from the black panthers, where mission, about their with the issues were, what they were trying to create, and we also have other materials relating to civil rights. this small pamphlet here that was produced by the student nonviolent coordinating committee. 1960's, and the black panthers are from the 1960's as well and they go to the early 1970's. this is a manuscript collection that we acquired from a woman named phyllis johnson. she was a very conserv