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VETERINARY HYGIENE 



for all classes of work, are made in a great variety of qualities. 

 Great progress has been made in the manufacture of these tiles, 

 resulting in fine colours and textures for use in domestic work 

 and reproductions of old roof coverings. The plain roofing tiles 

 are made 1Q| inches by 6^ inches, and have two nibs on the under- 

 side of head for hanging on to the tiling laths, or have two nail or 



FIG. 49. Various patterns of bricks. 



1. Machine-pressed brick with a frog. 2. Chamfered brick. 3. Perforated 

 brick. 4. Hand-made or wire-cut brick. 5. Bullnosed brick. 



6. Chamfered clinker. 7. Two-panel paving brick. 8. Eight-panel paving 

 brick. 9. Gutter brick. 10. Diamond paving brick. 11. Double bullnosed 

 brick. 12. Queen closer. 



peg holes. Some tiles are provided with both holes and nibs. All 

 are slightly bent to ensure the tail lying close to the lower tile. 

 Smaller tiles, 8 inches by 6| inches, are made for use at the eaves 

 course. Tiles should not be laid at a flatter pitch than 45 degrees. 



Pantiles, commonly used on sheds, byres and temporary 

 buildings, are rough and heavy, and do not keep out the wind unless 

 torched on the underside. They are popular in some districts, as 

 they can be laid on roofs with a pitch as flat as 2S degrees, and in 

 consequence of the ease of fixing and removing. Pantiles are 

 roughly bent, and provided with nibs for hanging on tiling laths. 

 Hips and valleys in pantiled roofs are finished with half-round 



