GYP 



279 



HAL 



might be more readily and as cheaply " Inquire in the counties of Chester, 

 restored to it by mixing ^vith it, when ' Lancaster, and others around us, where 

 dug into the soil, a little of the am- clover is so beneficially cultivated, how 

 moniacal liquor from the gas works, much is due to that excellent man, for 

 Gypsum is extensively used in Pennsyl- the great pains he took to extend the 

 vania and in many cases with the best use of gypsum? On this subject, I very 

 results. For its introduction originally recently transmitted to the Judge, a 

 we are indebted to the late Judge Peters; ! testimonial of gratitude from one of the 

 from a "short notice" of whom, by most intelligent persons of Lancaster ; 

 Samuel Breck, Esq., we extract the fol-; who unhesitatingly ascribes to Mr 



lowing: 



Peters' book on plaster, and his other 



" As a practical farmer, Mr. Peters ! agricultural essays, the merit of having 

 had from time to time communicated | produced a good part of the rich culti- 

 tlie results of the experiments made at j vation, for which that country is so 

 Belmont, to such of his neighbours as : celebrated." 



chose to profit by them ; but he had not | GYRENIA biflora. Half-hardy bulb- 

 written much, if anything, upon agri- I ous pereijnials. Division. Peat and 

 culture, before the year 1797. His first i loam. 



publication was then made, and con- I GYROCARPUS. Two species. Stove 

 tained a statement of facts and opinions \ evergreen trees. Cuttings. Loam apd 

 in relation to the use of Gypsum. This 

 pamphlet circulated widely, and pro- 

 duced such a change in husbandry, by 

 introducing the culture of clover, and 

 other artificial grasses, as gave, we all 

 know, a mngical increase to the value 

 of farms. Estates which until then were 

 unable to maintain stock, for want of 

 winter fodder, and summer pasture, 

 were suddenly brought into culture, and 

 made productive. Formerly, on a farm 

 destitute of natural meadow, no stock 

 could be supported ; and even where 

 natural meadow existed, the barn yard 

 was exhausted to keep up sufficient 

 fertility, (in the absence of irrigation,) 

 to feed a very few horses and black 

 cattle. 



" Such was the situation of our hus- 



peat. 



HABENARIA. Ten species. Stove 

 orchids. Division. Leaf-mould and 

 peat. 



HABRANTHUS. Fourteen species. 

 Green-house and hardy bulbs. Offsets 

 and seeds. Sandv loam and peat. 



H^MADICTY'ON venosum. Stove 

 evergreen twiner. Cuttings. Loam and 

 peat. 



HiEMANTHUS. Twenty-one 

 species. Green-house bulbs. Offsets. 

 Sandy loam and peat. 



H.T.MILIS. See Tinea. 



H ^: M D R U M . Two species. 

 Green-house herbaceous. Division. 

 Loam and peat. 



HA-HA, is a sunk fence, being placed 

 at the bottom of a deep and spreading 



bandry, for some years after the revolu- [ ditch, either to avoid any interruption 

 tion. It is proper to advert to it, that ' to an expanse of surface, or to let in a 

 we may understand the full extent of desired prospect. As all deceptions are 

 our obligation to the Judge. In the > unsatisfactory to good taste, and as 

 year 1770, he was shown the effects of when viewed lengthwise these fences 

 gypsum on clover, in a city lot, occupied ^ are formal and displeasing, they ought 

 by Mr. Jacob Barge, on the commons never to be adopted except in extreme 

 of Philadelphia. 



" The secret of its powerful agency 

 came from Germany, where it was ac- 

 cidentally discovered. Mr. Peters ob- : Green-house evergreen shrubs 

 tained a small quantity, which he used tings. Loam, peat, and sand, 

 successfully, and gradually promoted HALESIA. Snowdrop Tree. Three 

 its consumption, until, by his example, species. Hardy deciduous shrubs. Cut- 

 and his publications, the importation tings and layers. Common soil. 

 from Nova Scotia alone, into the single HALF-HARDY PLANTS arc those 

 port of Philadelphia, increased to the which require partial shelter, as in a 

 enormous amount of fourteen thousand cold pit or frame, during the winter, 

 tons annually. This was before the Here some attention is required to ex- 

 discovery of that fossil in the United elude from them dampness and frost, 

 States. : but especially the first. On these points 



cases. 



HAIR. See Animal Matters. 

 H A K E A . Forty-eight species. 

 Cut- 



