Thanks for all the feedback. The engineer in charge of my lab has mentored a lot of other undergraduates before and has been responsible for the maintenance of the upper division physics lab course at my university for over 15 years so I believe he does have a good gauge of students' academic...
Well he may not be able to talk about my class work but he would be able to go into greater detail about the lab work I've done. He's also seem examples of my writing and he has a copy of my transcript (which I needed to turn into get the internship) so he has some assessment of my...
I recently did an internship at my university in which I worked more closely with the engineer in charge of the lab rather than the professor. Would it be okay to ask the engineer in charge to write a letter of recommendation for grad. school since he is more capable of detailing my performance...