RUP 



RUT 



leaved; petals three, converging; seed 

 one, three-sided. There are thirty-six 

 species. 



RUMMAGE, in the sea-language, sig- 

 nifies to clear a ship's hold, or to remove 

 goods from one place of it to another. 



RUMOUliS, spreading such as are 

 false, is criminal and punishable by com- 

 mon law. 



UUMPHIA, in botany, so named in ho- 

 nour of George Everhard Rumphius, 

 M. D. a genus of the Triandria Monogy- 

 nia class and order. Natural order of 

 Terebintacex, Jussieu. Essential charac- 

 ter : calyx three-cleft ; petals three ; 

 drupe three-celled. There is only one 

 species, viz. R. amboinensis, a native of 

 the East Indies. 



RUNDLET, or RUNLET, a small vessel, 

 containing an uncertain quantity of any 

 liquor ; from three to twenty gallons. 



RUNGS, in a ship, the same with the 

 floor or ground timbers, being the tim- 

 bers which constitute her floor, and are 

 bolted to the keel, whose ends are rung- 

 heads. 



RUNG heads, in a ship, are made a little 

 bending, to direct the sweep or mould of 

 the futtocks and navel timbers ; for here 

 the lines, which make the compass and 

 bearing of a ship, do begin. 



RUNIC, a term applied to the language 

 and letters of the ancient Goths, Danes, 

 and other northern nations. 



RUNNER, in the sea language, a rope 

 belonging to the garnet, and to the two 

 bolt-tackles. It is reeved in a single 

 block, joined to the end of a pennant, 

 and has at one end a hook to hitch into 

 any thing, and at the other end a double 

 block, into which is reeved the fall of the 

 tackle, or the garnet, by which means it 

 purchases more than the tackle would 

 without it. 



RUNNET, or RENNET, the acid juice 

 found in the stomachs of calves that have 

 fed on nothing but milk, and are killed 

 before the digestion is perfect. 



RUP ALA, in botany, a genus of the 

 Tetrandria Monogynia class and order. 

 Natural order of Contorts. Protae, Jus- 

 fiieu. Essential character: calyx none; 

 petals four, cohering at the base ; stamina 

 inserted into the middle of the petals ; 

 pericarpium one-celled, one-seeded. 

 There are two species, viz. R. mon- 

 tana and R. sessilifolia, both natives of 

 Cayenne 



RUPERT'S drops, a sort of glass-drops, 

 with long and slender tails, which burst 

 to pieces on the breaking off those tails 

 in any part, said to have been invented 



VOL. V. 



by Prince Rupert, and therefore called 

 afier his name. This surprising pheno- 

 menon is supposed to rise from hence, that 

 while the glass is in fusion, or in a melted 

 state, the particles of it are in a state of 

 repulsion ; but being dropped into cold 

 water, it so condenses the particles in the 

 external parts of their superficies, that 

 they are easily reduced within the power 

 of each other's attraction, and by that 

 means they form a sort of hard case, 

 which keeps confined the before-men- 

 tioned particles in their repulsive state ; 

 but when this outer-case is broken, by 

 breaking off the tail of the drop, the 

 said confined particles have then a liber- 

 ty to exert their force, which they do by 

 bursting the body of the drop, and re- 

 ducing it to a very peculiar form of pow- 

 der. 



RUPPIA, in botany, so named in me- 

 mory of Henry Bernhard Ruppius, a ge- 

 nus of the Teirandria Tetragynia class 

 and order. Natural order of Inundatce. 

 Naiades, Jussieu. Essential character: 

 calyx none ; corolla none ; seeds four, 

 pedicelled. There is but one species, 

 viz. R. maritima, sea ruppia, or tassel 

 pond-weed. 



RUSCUS, in botany, butchers broom, a 

 genus of the Dioecia Syngenesia class and 

 order. Natural order of Sarnie ntaceae. 

 Asparagi, Jussieu. Essential character: 

 calyx six-leaved ; corolla none ; nectary 

 central, ovate, perforated at the top. 

 There are five species. 



RUSSEL1A, in botany, so named in 

 honour of Alexander Russe), M. 1). a ge- 

 nus of the Didynamia Angiospermia class. 

 and order. Natural order of Personatae. 

 Scrophulariae, Jussieu. Essential charac- 

 ter : calyx five-leaved, setaceous at the 

 end ; corolla tube very long, hairy at the 

 throat; border two-lipped, lower lip 

 tritid ; capsule acuminate, one-celled, 

 two-valved, many-seeded. There is only 

 one species, viz. R sarmentosa, found by 

 Jacquin about Havana, in close woods and 

 coppices. 



RUST of a metal, a word that has now 

 given way to the modern term OXIDI, 

 which see. 



RUT A, in botany, we, a genus of the 

 Decandria Monogynia class and order. 

 Natural order of Alultisiliquae. Ruracese, 

 Jussieu. Essential character : calyx five- 

 parted ; petals concave ; receptacle sur- 

 rounded by ten honey dots; capsule 

 loberl There are seven species. 



RUTILE, in mineralogy, a species of 

 the Menachinc genus, of a dark blood 

 red colour, of various degrees of intensi"" 



4L 



