Neale Monks has a nicely written and fair-minded new review of Collected Essays Volume 3: Science for SFcrowsnest.

Joshi has done a tremendous job here editing the various essays, letters, articles and manuscripts. … Overall, this is a fabulous book that opens a whole new side of Lovecraft that will be unfamiliar to most of his fans. His non-fiction writing is succinct, clear and easy to follow …. As a science writer, it’d be easy to dismiss him as a gentleman amateur, but that’s not at all the impression you get … Rather, he’s a man who may be largely self-taught but uses scientific instruments to collect data, takes copious notes and reads as widely as he can to keep up with current thinking.