Thank you! File fixed and reuploaded.
And as a bonus, here comes section 42 on Earl Stanhope; runtime 6:57
https://librivox.org/uploads/lynnet/menofscience_42_walker_128kb.mp3
Edit: And just because I can, here's section 11 on Mr. Cavendish at 12:28:
https://librivox.org/uploads/lynnet/menofscience_11_walker_128kb.mp3