I have always loved steampunk and thaumatology. This is a perfect addition to magical steampunk and magi-tech systems.
Not only is this a great idea. It is really well written. The into bit is colorful and in character. The entry of the text book is perfect as it sets the scene for the rest of the submission. The rest of it is clear, concise, and useful.
Two paws and a tail up for you.