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Additional Observations on trimming Hedges; on the Ve- 

 getation of the Haws ; and the injurious Effects of 

 the Walnut and Cedar Tree on them. By James 

 Mease, M. D. 



Read July 12, 1814. 



In pages 15, and 382, it is stated that Mr. Neill in- 

 jured his hedges by summer trimming, but their age 

 was not mentioned. *' At the time they were trimmed 

 they were three years old, and were cut down to 12 or 

 14 inches. The following year, he says, they kept alive 

 and but little more : this year, (1813) they show more 

 vigour, and he thinks that in another year they will 

 send out well.'^ 



The haws of the Washington thorn fCratagus cor- 

 dataj require to be buried one winter before they 

 sprout, and they should be put into the ground the 

 same autumn they are taken off the tree ; the pulp sur^ 

 rounding the stones having been previously rubbed 

 off, and the stones washed. The usual way is to put 

 them in a box of sand, and to stand it under the eaves 

 of a house, to receive the dropping of water from it, 

 and by the spring they will be open and ready for 

 planting. But Mr. Caleb Kirk of Brandywine tried 

 with success a more expeditious way, viz. immersing 

 the stones, previously rubbed and washed, in hot wa- 

 ter to swell them, then exposing them to the air, at 

 night, to freeze the water in which they were immer- 

 sed, and afterwards thawing them in the sun, repeat- 

 ing this process for four or five days, when he found 

 them open and fit for planting. He tried this ex-^ 



