1. The man _wearing the brown coat_ is my brother.
2. My brother bought a new coat _which is brown_.
3. The lesson _that I take at nine o'clock_ is English.
4. In English _which I take at nine o'clock_ we are studying punctuation.
5. I am going to work in every city _that I visit_.
6. I am going to work in any city _where I can find employment_.
7. I am going to work in Denver _where my uncle lives_.
8. The house _on the hill_ is the oldest in town.
9. The house _that is the oldest in town_ is used as a museum.
10. The Franklin Museum _which occupies the oldest house in town_ is a very interesting place.
11. The town museum is the place _that I like to visit_.
12. The chimney _that was blown down last night in the storm_ should have been mended long ago.
13. The old ruined tower _which has long been a picturesque sight in the village_ was blown down last night.
14. We counted ten chimneys _that were blown down last night_.
15. The stenography system _that I studied_ is Munson's.
16. I think she uses Munson's _which she considers a good system of stenography_.
17. Last year I pursued a course in stenography _which I enjoyed very much_.
18. The book _that we use in class_ has a brown cover.
19. The only milk _that is fit to drink_ comes from a clean dairy.
20. Systematic inspection has been carried on _which has resulted in securing better milk_.
=Rule 9.--A non-restrictive clause should be separated from the rest of the sentence by commas.=
1. We have an enormous crop of cotton the value of which is estimated at one billion dollars.
2. "The root of the mail order evil is the idea which the retail mail order houses have been able somehow to instill into the minds of the buying public that the local merchants ask too much for their goods."
3. Mr. Hilton who was sales manager at that time induced the company to adopt this system.
4. The lecture will be delivered by Mr. Brenton who is the head of the advertising department of Whitlock & Co.
5. Our dog whose fur was wet by his plunge into the lake came running toward us.
6. Genevieve who had always been the leader in the games was not present.
7. A late product of the brain of George Westinghouse who was the inventor of the air brake and numerous electrical devices is an air spring for automobiles. This little article has been patented by Mr. Westinghouse who has the sole ownership. The spring which has already proved popular with automobile owners fits over the end of the regular spring and "makes good roads out of bad ones."