Metals, heavy, distribution of 1050 



, , in harvestable resource 149 



, increases in content of heavy 149 



, trace 2090 



Metamorphosis 86, 298, 311, 451, 455, 1045, 1174, 1238 



Metaphase I 129 2 



Metazoan agents 1061 



Metazoans 453 



Metacercaria 328 



Methane 3 56 



Methionine 954, 2140, 2167 



Method/methods 75, 566, 918, 1992, 2043 



, direct 391 



for analysis 1645 



______ _ cultivating 1328 



_ _ determination 1855 



of feeding 1187 



_ formation 860 



, photographic 1203 



Methods, asexual 360 



, development of 4 54 



, effectiveness of alternative 377 



for embedding and sectioning of shell and entire specimens 1674 



of harvesting 777 



spawning 1113 



, sophisticated 296 



to increase production 665 



Methotrexate 1076, 1081 



, equal to 10 7 6 



superior 1079 



Methoxychlor 228, 533, 534 



a-methyl DOPA 99 2 



Methyl groups required, two 19 89 



mercury 1389 



substitution 700 



urea group 4 36 



Methylated derivatives 210 

 Methylcholanthrene tumors 1051 

 24-methylenecholesterol 896 

 Methylglyoxal 531 



, volatile derivative of 1627, 1638 



Methylxylocholine 2114, 2115 



Methysergide (UML) 12, 704, 708, 1159, 1976, 2049 



Metridium 1971 



Mexican province 1519 



Mexico 548, 1482, 2035 



Mg ATP 2092 



742 



