Calendar: 1878-1879 Page 628

62G APPLIED SCIENCES State the theory of the arch applying to iron Sketch and explain the sections of girder of cast iron and one of rolled iron compared Sketch timber roof truss 30 feet span pitch about 30 degrees 10 Sketch design for brick arched bridge segmental 30 feet span 10 feet rise 20 feet wide 15 feet headway above water 10 feet deep stream 50 feet wide at surface foundation good rock 11 For what more ordinary building material is iron sub- stitute and what are its prospects in that respect 12 Why is it expedient to cover the site of dwelling house with concrete IX- eologp Explain the theory of the formation of mountains How can the geological age of mountain chain be deter- mined What is the age of the Himalayas Compare the Globigerina ooze with chalk Describe Trilobite Describe the physical geography of England in the age before the Carboniferous Give the succession of strata in the Carboniferous formation where it is fully developed State which are coal-bearing and mention where maririte strata come in What is coal Describe the construction of Lepidodendron What are the simple principles of coal-mining 10 Explain the formation of coal basins -Cljfmtgtrg What is the composition of potassium chlorate For what purposes is it employed Name the three metals which are likely to be contained in solution which yields precipitate on addition of hydrochloric acid