300 HARRIS, KIRKPATRICK, BLAKESLEE, WARNER AND CARD 



DIAGRAM 9. Tests of the prediction of annual production (upper figure) and of the pro 

 duction of a group of remaining months (lower figure) from the combined record of three con 

 secutive months. Tests for the period November to January. 



C 2 8 10 I! 14 IS II 



SC SI 7S 7t &amp;gt;4 7t X it 



DIAGRAM 10. Tests of the prediction of annual production (upper figure) and of the produc 

 tion of a group of remaining months (lower figure) from the combined record of three consecu 

 tive months. Tests for the period March to May. 



