The mosquitoes sought the shade in the heat of the day.

It was some satisfaction to us to see the havoc made among them by a large and beautiful species of dragonfly called the mosquito hawk, which wheeled through their retreats swallowing their prey without a momentary diminution of speed.

But the temporary relief that we had hoped for was only an exchange of tormentors: our new assailant, the horsefly, or bulldog, ranged in the hottest glare of the sun and carried off a portion of flesh at each attack.

Another noxious insect, the smallest but not the least formidable, was the sandfly known in Canada by the name of the brulot.

To such annoyance all travellers must submit, and it would be unworthy to complain of that grievance in the pursuit of knowledge which is endured for the sake of profit.