The gentleman's recreation [electronic resource] : Or the second part of the art of gardening improved. Containing several new experiments and curious observations relating to fruit-trees: particularly, a new method of building walls with horizontal shelters. Illustrated with Copper Plates. By John Laurence, M. A. Rector of Yelvertoft in Northamptonshire. To which is added by way of Appendix. A new and familiar way to find a most exact Meridian Line by the Pole-Star; whereby Gentlemen may know the true Bearings of their Houses and Garden Walls, and regulate their Clocks and Watches, &c. by Edward Laurence, Brother to the Author of this Book. .