62 



KANSAS ACADEMY OF SClEyCE. 



No. 1. 

 Eoffular Form. 



(inverted.) 



Printing first four 

 pages outside. 



No. 2. 



Primary square 



indiverted. 



Throwing last four 

 pages outside. 



No. 3. 



Primary square 



converted. 



Placing last four 

 pages in center. 



No. 4. 



Primary square 



condiverted. 



Making-up first four 

 pages in center. 



In the case of music books, where the pages are longest from front to back, 

 the forms are made up by a different scheme. This is shown in 

 Scheme XVI. 



The arrangement 

 of the couplets is: 



t^. iro- 



1 8 

 4 5 

 3 6 



2 7 



And the primary 

 square is: 



No. 58. 

 Primary Square. 



No. 5. 

 Regular Form. 



Witli first four pages 

 outside. 



No. 6. 

 Indiverted Form. 



Witti last four pages 

 outside. 



