SCIENT. PROC. R. DUBL. SOC, N.S., VOL. XIII. 



PLATE XXXII. 



40 80 120 160 200 240 280 320 360 400 440 20 



N? 1. Air. 



40 



60 



N?2, 



80 



100 100 140 ISO 



Air. 



220 Z60 300 340 380 420 



N?3. Air. 



40 60 80 



100 120 

 N?4. 



140 160 ISO 



Air. 



200 



40 

 20 



Diameter 3 1 cms. 

 pressure 2S-3" 

 temperature 14 °C 



Mean Velocity cm/Sec 



pressure 29 9 

 temperature 13 °C 



Mean Veiocity \ [_ 



Diameter S' 03 cms. 

 pressure 29 8" 

 temperature 12 °C 



_L 



20 40 60 80 

 N? 5. Air. 



200 



50 60 70 



80 90 100 no 

 N? 6. Air. 



120 130 140 



60 70 



80 



90 100 no 

 N? 7. Air. 



120 130 140 



60 60 100 



120 

 N? 8 



140 160 



Air. 



ISO 200 



