lake of, [358];

its causeways, [364], [369];

alleged plan by Montezuma, [364];

Helps’s plan, [369];

Wilson’s plan of the valley, [374];

the lake in Cortés’ day, [375];

shrinkage of the lagunes, [375];

map in Keating’s Bernal Diaz, [415];

Jourdanet’s map (heliotype), [375], [415];

Humboldt’s map, [375];