Certainly it was surprisingly efficacious in my own case.
Next day we directed our attention to the capture of the cow, which was still wandering around her imprisoned little one, and only leaving it for a few minutes at a time in order to get food.

I constructed a small fence or inclosure of sticks, and into this we managed to drive the cow.
We then kept her for two days without food and water, in order to tame her, and did not even let her little calf come near her.

We then approached her, and found her perfectly subdued, and willing to take food and water from us precisely as though she were the gentlest Alderney.
I found I was even able to milk her; and I can assure you that I never tasted anything more delicious in my life than the copious droughts of fresh milk I indulged in on that eventful morning.

In fact, I practically lived on nothing else for the next few days, and it pulled me round in a most surprising way.

The flesh of the dead buffalo I did not touch myself, but handed it over to the blacks, who were vastly impressed by my prowess as a mighty hunter.