Manthey's mathematical analysis of Wyld's survey computations is excellent. His explanation of Wyld's terminology is also very good. -- Professional Surveyor Magazine
"In this small tract you'll find the whole Art of Surveying Land epitomized. The rules and methods here laid down in a plain and familiar manner, such as are fittest for a Practioner's use, without an unecessary mixture of useless curiosities and needless repitition. And although brevity be chiefly intended, yet nothing is here omitted, but what might be well enough be spared in a treatise that immediately relates to the Practice."