David Morin's office hours in
Lyman 238, week of [summer hours]: I'm generally around in the summer, so just stop by or email to set up a time.
Check daily for any last-minute changes.
Check out the Physics undergrad FAQ page for answers to many common questions.
If for any reason you can't make office hours, please send me an email with a few other possible times you can make, and I'll see which ones work. This will cut down on the number of emails sent back and forth.
If you are changing your concentration to Physics or Chem/Phys, please email me with a few possible times other than regular office hours, because we'll need 20-30 minutes to go over things and fill out some forms, and regular office hours will probably be too hectic to do this.