Of all rulers and reformers he was the most laborious and incessant.

He was most laborious in study, very careful to improve his time.

Mr. Jorrocks knows his work, and is generally a most laborious man.

He was the most laborious city minister, and the chief preacher.

I might, perhaps, have added with truth, the most laborious part.

I say, old chap, this sort of work is most laborious.

The efforts of the most laborious of lives have ended in this lamentable relic.

This part of the work is obviously the most laborious.

The driest and most laborious investigations have not deterred him.

It's got to be the most laborious art-form on Earth!

Are not the most laborious of all labourers in London and New York, Irishmen?

The making of bread is therefore one of the most laborious employments in the Institution.

But his most laborious and persevering efforts were in behalf of the infant parish poor.

This is a most laborious process, and occupies many hours of the day or night.

My child, you are entering, through indolence, on one of the most laborious of lives.

The most laborious task will be the proper