LIST OF ILLUSTEATIONS 



i'lG- PAGE 



1. Transverse section of stable . . . 63 



2. Boyle's system for supplying fresh and warmed air to stables 65 



3. Section of a stable heated artificially by means of Boyle's gas- 



bracket ... .66 



4. Sheringham ventilating window (Musgrave) . 68 



5. Sheringham ventilating window (Musgrave) . . 69 



6. Direction taken by air currents with the windows open to windward 70 



7. Direction taken by air currents with windward and leeward windows 



open .... ... 71 



8. Double current from opposite windows 71 



9. Direction taken by air currents when opposite windows are half open 72 



10. Direction taken by air currents when all doors and windows are 



closed .... . 72 



11. Simple extraction cowl (Parkes) . 73 



12. Inlet cowl (Parkes) . . 73 



13. Boyle's air-pump extractor . 74 



14. Plan of Boyle's air-pump . 74 



15. Inlet shaft with angle 75 



16. Inlet shaft curved . 75 



17. Divided tube (Parkes) 76 



18. McKinnell's tube (Parkes) 76 



19. Tobin's tube ... .77 



20. Ventilating stable pillar on the principle of a Tobin's tube . 78 



21. Air-bricks . '^ 



22. Air-bricks . ^^ 



23. Transverse section of stable 82 



24. Transverse section of stable 



25. Blackman Air-Propeller ^'^ 



26. Smut of Oats (Fream) ^63 



27. Rust and Mildew (Fream) . 1^* 



28. SpikeofErgotized Eye (Smith) 165 



29. Ergots germinating (Smith) ^°° 



30. Botrytis grisea (Boucher) 



31. Penicillium glaucum (Boucher) 



32. O'idium aureum (Boucher) 

 33. 



XI 



2 



166 

 167 



Ear Cockle, showing the nematoid worms (Smith) . • 168 



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