Hello everyone. Similar to my first thread, I am now looking for some biology/chemistry textbooks. The math/physics/engineering book lists on this forum are absolutely wonderful. I really need a few people to help me pick out a few good text books for bio/chem which have lots of tough problems and teach with a lot of rigor. Particularily, these are mostly old books written by biologists of high repute. The books I am looking for are undergrad/grad level by the way. I have to purchase text books soon, so quick help would be greatly appreciated.