Process is reversible 520, 522, 523 



Processing, effects of 1263 



Prodissoconch-dissoconch boundary 1174 



Producers 121 



Production (see also yields) 67, 234, 337, 339, 485, 827, 1016, 1219, 1228, 1248 



^ , actual 778 



, annual 417 



__, average 413, 414, 416 



costs 67 



, estimated annual 658 



, gross 1243 



in bushels per year 1994 



grams per square meter per year 19 46 



increase 150, 440 



increments 827 



, peak years for 246 



per acre per year 582, 1840 



__^ , primary 2182 



____, prototype 1320 



statistics 339, 1001, 1213, 1218, 1299, 1320, 1324, 1656, 1672, 1679, 1694, 



1695, 1770, 1870, 2045, 2046, 2047 



studies 826 



, total 99, 102, 103, 413, 658, 672, 756, 1320, 1869, 1994 



, shellfish 1867 



trends 65, 99, 727 

 value 658, 1870 



Productivity and nutrient values of plants 1860 



, benthonic 1488 



, crustacean 1714 



, mechanics of 667 



Products, canned 413 



^____ of commerce, marine 1815, 1816 



Profit, operating at a 384 

 Profitability, degree variable 638 



, marginal 638 



Profitable culture 638 



Profits 67, 76, 296 



Prognosis 557 



Program, experimental 486 



Progreso, Mexico 919 



Proguanil 930 



Prohibited 1556 



Proliferating system in mouse, normal 891 



Proline 954, 2078, 2140, 2177, 2225 



Promethium/promethium-147 288 



Promine 531 



" " , promoter named 1765 



779 



