JOURNAL OF AGRICULTURAL SCIENCE. Vol. VIII. No. 4. 



Fig. 1. 12.20 p.m. 



Fig. 5. 4.25 p.m. 



Fig. 2. 3.10 p.m. 



Fig. 6. 5.25 p.m. 



Fig. 3. 3.40 p.r 



Fig. 7. 6.30 p.m. 



Fig. 4. 3.55 p.m. 



