GENERAL REMARKS. 17 



at one view many proportions of an acre of land, in squares 

 of different dimensions. The last line, for instance, shows 

 that if forty-eight trees be planted on an acre, each thirty 

 feet apart, that there may be forty-eight beds of thirty feet 

 square, or thirty beds of forty-eight feet square, formed from 

 the same quantity of land. An allowance of about ope- 

 eighth must, however, be made from the above calculation 

 for walks and paths. 



The table may also serve to show the gardener how to 

 dispose of any given quantity of manure, that may be allotr 

 ted for an acre of ground. If, for instance, it requires three 

 hundred and two trees to plant an acre when placed twelve 

 feet from each other, it will require as many heaps of manure 

 to cover the same quantity of ground, if dropped the same 

 distance apart. It therefore follows, that if one hundred loads 

 be allowed to the acre, each load must be divided into three 

 heaps. If seventy-five loads only be allowed, every load 

 must be divided into four heaps, and so on in proportion to 

 the quantity allowed. But if the gardener should choose to 

 drop his heaps five paces or fifteen feet apart, he may 

 make such distribution of his loads as to have one hundred 

 and ninety-three heaps on the acre of land ; in which case, 

 by dividing each load into four heaps, he will require only 

 forty-eight loads to cover the acre, and he may decrease the 

 quantity still more, by allowing greater distances from heap 

 to heap, or by dividing his loads into smaller proportions, 

 so as to accommodate himself to whatever quantity of ma- 

 nure he may allot to any given quantity of ground. 



As it may not be generally known that some species of 

 seeds are apt to lose their vegetative qualities much sooner 

 than others, the following hints are subjoined as some rule 

 for the gardener's government, provided the seeds are care- 

 fully preserved, and not exposed to excess of heat, air, or 

 dampness : 



Parsnip, Rhubarb, and other light scalerlike seeds, cannot 

 be safely trusted after they are a year old. 



Beans and Peas of different species, Capsicum, Carrot, 



2* 



