WINNIPEG, April 10.--Dispatches received to-day confirm the vague report regarding the massacre by Indians which took place at Frog Lake, which reached Winnipeg at 1:30 o'clock this morning.

The Mexican Civil Guard reports. Every day, almost a million liters of water from Lake Patzcuaro are plundered to irrigate the avocado trees that are so numerous in the Mexican state of Michoacan.