Better. We then studied chemistry, a subject much more interesting than history, and one which I enjoyed thoroughly.

Revise. Jacob Sturm was a man of much wealth, and who came to this country twenty years ago.

429. Use but to connect only those expressions which are in the same construction.

Bad. I started into high school resolved to make the most of my opportunities, but in no long time deciding to have all the fun I could.

Better. I started into high school resolved to make the most of my opportunities, but in no long time I decided to have all the fun I could.

Revise. The colonel issued an order about mounts, but which nobody could understand.

430. After a comparative degree, exclude the subject of comparison from the class with which it is compared.

Wrong. Platinum is more valuable than any metal.

Right. Platinum is more valuable than any other metal.