"I often think about maps, because so much of what I do involves measurement. To explain features or processes, you mu…"

"Rivers are the great shapers of . Rivers transport supplied for hillslope and , in some cases controlling the gradien…"

"... relatively few people are aware of how nineteenth- and twentieth-century patterns impacted the mountain rivers of…"

"The and its large tributaries historically hosted an extraordinary assemblage of large-river fish species. The , , , …"

"Behind our house lay a and . Though only a few s, it constituted wilderness to me. Deer, fox, raccoon, s, s, and s in…"

"Throughout human history, people have settled disproportionately along rivers, relying on the rivers for , , fertile …"

"About the time I was trying to decide what kind of I wanted to be, I took a hike along the canyon of the in central A…"

"Pwede naman ako tawagan ni Ate at tanongin privately kung meron silang hindi maintindihan. Pero tila hindi kalinawaga…"

"Scientific education is catholic; it embraces the whole field of human learning. No student can master all knowledge …"

"Honest investigation is but the application of common sense to the solution of the unknown. Science does not wait on …"