a. 

 f 



91 



tr 



f 



H 



M 





The ordinary contrivance with whip-cord is one of 

 the caficft, for that will infallibly fliorten and lengthen 

 as the air grows moifter and drier. '. ' 



Some recommend a cat-gut as the befl, which may 

 \- be a yard in length fufpended, having a pluinbct or' 

 ■ Apiece of lead, with an index or pointer hanging at the 

 ,', lower end, by means of which the cat-gut will twill 

 'or untwiftas the air dries or mpiilens, and iliortcn and 

 lengthen fo as to raife and link the plumbet with 

 the index, and this index will point out the degree 



fought for. ■ ^:.i . . v.v: . 



The v/eio^ht of this lead or plumbet, (hould be about 



,^ two ounces. . - ■' ■ . ' 



, Some perfons who approve a fine winp-cord inftead 



of cat-o-ut, ufe a greater weight of lead •, the twilling 



and untwifting of the cat gut or whip-cord, will make 



' -^ the lead with the index turn round, as well as rife 

 and fall The degrees may be made upon, an open 



:. fcrew of brafs within, with which the plumbet and 



index has its motion. ^ ;.r. ' >._ . .- 



When you are provided with a barometer and Hy- 



.' cronieter, compare the motions of the one with the 

 other, in order to judge what proportion the rife or 

 fall of the qviickfilver in the barometer bears.^tp the 

 twitting of the cat-gut or^ whip-cord ; the degrees 

 of which motion may be obferved by the index or 

 pointer of the Hygrometer; and at the fame time' 



- both thefe mull be compared with the rifing and fall- 

 ing of the fpirit in a thermometer, to^ know, what de-' 

 gree of heat' or cold attends every differerit change 

 of weather, 'r , :^-v. ^i:^Tox ,j-- s \-ffe:s3!rr; 



HYGROSC OPE £pf Jypo?, moift, and o-xottew, to 



.:■'. view or confider,X a machine the fame as the hygro- 



. meter, and for the fame ufes. .^ 



, .Thefe inftruments are of good ufe in confervatories, for 



v; rfieaiufing orlhewing the dampnefs or drinefs of them 



* in the winter feafon. . 



HYMEN-^A. Lin. Gen. Plant. 512. Courbaril. 

 , Plum. Nov. Gen. 49. tab. 14. Locufl-tree. _ » 

 :..;..,.., The Characters are, ^ ,-.: 



^he outward involucrum of the flower is divided into 

 i two partSy the inward is of one leaf indented in five 

 parts ; the flower hath five petals^ which are equal in 

 \M^Cy andfpread open. It hath ten declining ft amina^ which 

 'arefhort^ terminated hy oblong fummits. In the center 

 \- ■ ts fttudted an oblong ger men j fupporting a declining fly le^ 

 \I crowned by an acute ftigma •, the germen afterward be- 

 ^comej q, large oblong pod^ with a thickligneous fhell^ di- 

 '. '.^vi^ed into fever al partitions tranfverfly^ in each of which 

 " .....isjodgedone compreffed large feed^ furrounded zvith a fa- 



\ _ 





turc on both edges; tlicfe contain three or four 



roundilh compreffed feeds, divided by tranfvTi'fe par- 

 titions. 



The wood of this tree is cftcemcd as good dinber 

 in the Well-Indies, and it yiekis a tine dear refin w!»ich 

 13 called gum ariime in the lliops, which makes an 

 excellent varnifa. ■ 



It is eafily railed, from the feeds if thi-y are frrHi j 

 tliefe muit be lown in pots, and plunged into a hot- 

 bed of tanners Bark : there Ihould be 



for if orreat care is not 



^. ,^. _ but one feed 'put 



. into each pot, or if diere is more, when the plants 



appear, they fliould b^ all drawn out to one foon after 



..they come up, before their roots' entangle, when it 



,will be hazardous doing it ; " " 



^;^ taken, the plant intended to be left may be drawn out 



with the other. As the roots of this plant are but 



:,^ilender, lb they are very difficult to tranfplant ^.for 



1 -.unlefs a ball of earth is preferved to their roots, they 



feldom furvive their removal, therefore they hilift be 



■ feldom tranfplanted from one pot to another. The 

 plants nnuft conllantly remain in the tan-bed in the 

 "ildve, and fhould be treated in the fame way with 



'.:. other tender plants of the fame country, giving but 



Jittle. water to them, efpecially in the winter. Wheil 



, ^ thefe plants firll appear, they make confideriible pro- 



■ grefs for two or three months, after which time they 

 ,^r.are at "a {land perhaps a wKole year without (hooting, 



.^ Being in their growth very like the Anacardiuin,' or* 

 ^.Xalliew Nut, fo is very difficult to preferve long in 



■'^^this^cquntry. ;:;;,• ;. 



HYOSCYAMUS. Tourn. Inft. R. H. 



« ^ « 1 X^l, 



i.'^- 



1^^ 



M7. tab. 

 ^/42.,I-m. Gen. Plant. 218. [or LV, afwine, and yAxu^^ 

 , a Bean, ql S. Hog's-bean,l Henbane 3 in French, 



1 he Characters are, . 



The flower has "(t^ "cylindrical empakinent 'bf one leaf^ 

 ^ .which is permanent^ fwelling at the bottom^ and cut into 



five acute fegments at the top. , It hath* one funnel fh^ped 



petals with a ftjort cylindrical tub'e^ and an ere£r fprcad- 



ifig rim, cut intofi' 

 ■ the ethers ; 



rrno 



' % 



■ 



obttife paftSy ojie being larger than 

 it hath five inclined ftanibia^ terminated by 

 roundifh fummits. In the center is fituated a roundijij 

 germen^ fupporting a flender ftyle, crctvned by a round 

 i 



■f 



J. . rinaceous pulp. 



_■ - 



- * 



» \ 



''. 



The germen afterward becomes an oval obtufe 

 xapfule fitting in the empaleme'nt^ divided in two cells 

 by an intermediate partition^ opeiilng with a lid at the 



- Jop^ to let out the many fmall feeds which adhere to the 



- partition. 



This "genus of plants is ranged in the firfl: fe(5lioft of* 

 Linnseus's fifth clafs, intitled Pentandria Monogynia, 

 in which he includes thofe plants wKofe flowers have 



This genus of plants is ranged in the firft fe6lion of .^Jfive ftahiina^and onS ftyle. 



i' 



« ^ 



•■ I 



Linnaeus's tenth clafs, intitled Decandria Monogynia, 



T^e SpEci£S are. 



' '*' JV^ 



A-V. 



.- V^^Jt- CVVjEl 



A 



"- * 



^ ».- 



■- - ' 



n *>^ n' 



■,...wJiich includes the plants whofe flowers have ten fta- r. Hyoscyamus {Niger) folus amplexicaulibus fmuatis, 



^ florllDUS feffilibus. Hort. Cliff 56. Henbane with finu- 

 ^ ated leaves embracing theftalkSy and feffile flowers. 





mina and one ftyle. 



"We know but one Species of this genus, viz. 

 'iiYMEiiMA'{CourbariL) Hort. Cliff. 4.8^.-^ -Locufl-tree, 



Courbaril bifolia, flore pyramidato. Plum. Nov. Gen. Vj. Henbane, 



49. Two-leaved Courbaril with a pyramidal flower^ com- I 2. Hyoscyamus (Major) foliis petiolatis, floribus pe- 



Hy. 



*bfcyamus vulgaris, vel higeh C. B. P. Common Black 



•f: i-"^ 



T -H 



\ 



- ,\ 



^ A 



monly called Locuft^tree in America, 

 This is a very large fpreading tree in the Weft-Indies, 

 where it grows in great plenty : it hath a large item, 

 covered with a ruffet barkj which divides into many 

 fpreading branches', garnifhcd with fmooth ftiff leaves, 

 .which ftand by pairs, their bafe joining at the foot- 

 ftalk, to which they ftand oblique, one, fide being 

 much broader than the other, the two outer fides 

 being rounded, and their infide ftrait, fo that they 

 ^cfemble a pair of iheep-fliears ; they are pointed 

 at the top, and ftand alternately on the ftalk. The 

 flowers are produced in loofe fpikes at the end of the 

 branches^ Ibme of the ftiort ligneous foot-ftalks fup- 

 porting two, and others three flowers, which are com- 

 pofed of five yellow petals ftriped with purple ; the 

 petals arc fliort and fpread open ; the ftamina are much 

 longer, and of a purplifli colour •, thefe flowers are 

 fucceeded by thick, fiefliy, brown pods, fliaped like 

 thofe of the Garden Bean •, they are fix inches long, 

 and two inches and a half broad, of apurplilli brown 

 colour, and a ligneous. conCfl:ence, with a large fu- 



dunculatis terminalibus.'- Henbane with leaves having 

 ,foot'ftalks^ and flowers with foot-flalhs tefmikating the 



branches. Hyofcyamus major, albo fimilis, umbilico 

 . fioris atro-pupureo. T. Cor. Great Henbane like the 

 ^ white^ but with a dark purple bottom to the flower. • 



3. Hyoscyamus {Albus) foliis petiolatis, floribus feffi- 

 libus. Hort. Upfal. 56. Henbane with leaves having 



J, Joot-flalks^ and flowers fitting clofe to the branches. Hy- 



/ oicyamus major, albo fimilis, umbilico floris virenti. 



Juffieu. Greater Henbdiie like the white, Wtth a green 



bottom to the flower, 



4. Hyoscyamus {Minor) foliis petiolatis, floribus fo- 

 litariis lateralibus. Henbane with leaves having foot- 



flalks^ and flowers proceeding ftngly from the fides of the 

 branches. Hyofcyamus minor albo fimilis, ombilico 



Hen- 



S-f/laller 



floris atro purpureo. Toiirn. Cor. /^. 



bane like tie white^ with a dark purple bottom to the 



5 



flozver. 

 Hyoscyamus 



(Reticulatis) foliis caulinis petiolatis 



cordatis fnuatis acutis, floribus integerrimis, corollis 



vcntricofis. Lin. Sp. 2^^. Henbane with heart-fhapedi 



> 7 A pihatedy 



