514 Proceediny^ of the Royal Irish Accident i/. 



Table I. 



No. 



Length. 



of 





Pipes. 



L. 



Radius 

 R. 



L.+R. 



0-65 



30-9 



0-6 



24-8 



0-6 



23-2 



0-6 



19-3 



O-o 



16-9 



0-5 



15-9 



0-5 



13-2 



0-4 



12-1 



0-4 



10-0 



0-3 



8-4 



0-3 



7-9 



0-3 



6-7 



0-2 



5-5 



0-2 



4-7 



0-2 



4-1 





Pitch 

 found. 



Diff. 



Per 



cent. 

 Diff. 



Nearest note on scale 

 of equal tempera- 

 ment.! 



I. 



30-2 



II. 



24-2 



Ill, 



22-6 



IV. 



18-7 



V. 



16-4 



VI. 



lo-4 



VII. 



12-7 



Till. 



11-7 



IX. 



9-6 



X. 



8-1 



XI. 



7-6 



XII. 



6-4 



XIII. 



5-3 



XIV. 



4-5 



XV. 



3-9 



279 



341 



371 



446 



509 



541 



656 



710 



866 



1024 



1090 



1282 



1562 



1830 



2098 



284 



+ 5 



1-8 



343 



+ 2 



0-6 



378 



+ 7 



1-8 



444 



- 2 



0-5 



512 



+ 3 



0-6 



542 



+ 1 



0-2 



647 



- 9 



1-4 



711 



+ 1 



0-14 



875 



+ 9 



1-0 



990 



-34 



3-4 



1058 



-32 



3-1 



1278 



- 4 



0-25 



1522 



-40 



2-5 



1865 



+ 35 



1-9 



2120 



+ 22 



1-0 



C'^280. 



E' 333 or F' 352. 



F J 373. 



A' 444. 



B' 498 or C" 528. 



C" 528. 



D"^628orE"666. 

 F" 704. 

 A" 888. 

 B" 996. 



C" 1056. 

 D'" I 1256. 

 F'" J 1492. 

 A'" I 1880. 

 C"''2ii2'.' 



In musical notation the notes stand as follows : — 



Sva, . .. 



-m- • 



^^ 



*: 



3tZ^ 



The simple relations which occur between some of the notes are 

 given in the following Table. 



[Table II. 



1 The notes thus extend over three octaves. The scale assumed is that of the 

 Society of Arts (Helmholtz's C" = 528, whereas modem concert pitch C" = 540). 



