THE manuscript of this book was left by the late Prof. Green in a somewhat unfinished condition, and the editor was asked to prepare it for the press. The book is described in the preface as being ...

Even teachers spend time in summer school. Teachers spent time this week traipsing through Garden of the Gods, touching rocks and learning about such things as alluvial fans, ancestral Rocky Mountains ...

As schools and universities in Washington state and around the country are closed due to the coronavirus pandemic, teachers are using online tools to connect with students. Nick Zentner, a geology ...