LIST OF ILLUSTRATIONS. 



TEST FIGUEES. 



Fig. 1. Index map of localities producing sand, gravel and crushed stone. 



2. Granularmetrie analysis of Pasig "banca" sand. 



3. Granularmetric analysis of Pasig "dredge" sand. 



4. Granularmetric analysis of Pasig "dredge" sand. 



5. Granularmetric analysis of Quingua sand. 



6. Granularmetric analysis of Sangley Point sand. 



7. Granularmetric analysis of Orani sand. 



8. Granularmetric analysis of Orani sand. 



9. Granularmetric analysis of Tarlac sand. 



10. Granularmetric analysis of Corregidor sand. 



11. Granularmetric analysis of Mariquina gravel to pass 1.5-incli opening. 



12. Granularmetric analysis of Mariquina gravel to pass a 0.75-inch opening. 



13. Granularmetric analysis of Mariquina gravel to pass a 1.5-inch opening. 



14. Granularmetric analysis of Mariquina gravel to pass a 1.5-inch opening. 



15. Granularmetric analysis of Sisiman crushed stone, containing fines. 



16. Granularmetric analysis of Sisiman crushed stone, fines excluded. 



PLATES. 



Plate I. Fig. 1. Pasig sand. Fig. 2. Sangley sand. Fig. 3. Orani sand. 



II. Fig. 1. Quingua sand. Fig. 2. Corregidor sand. Fig. 3. Tarlac sand. 



481 



