rodetia (t as sh)

[Named after H. J. A. Rodet, a French botanist, 1810-75.] Bot.: A genus of Achy ran these. The natives of India eat the bright crimson berries and also the young shoots, the latter fried in ghee. chin, bench; go, gem; thin, this; The American Dictionary and Cyclopedia IMG:content-0707.png:[blocks in formation] to have discovered certain "black rays" which he absolute reliability the entrance of death into the terms Kritic rays, or critical rays, that reveal with body. In his letter addre ed to the Imperial Academy of Science, in January, 1897, he says: "The Kritic rays are directed out of a vacuum tube and body upon which, for the purposes of experiment, ously, wantonly. are so piercing that they immediately penetrate the duce on the photographic plate images which are of quality or state of being roguish; knavishne , a different character according as they are taken of archne , cunning. hand is the easiest experiment in test work of this a diving or of a dead body. The photographing of a kind. If, when it is laid on the photographic plate ish, wanton. and subjected to the Kritic rays, it appears as the living hand does under the Roentgen rays, viz., with all the bones distinguished, then beyond question the person is alive. If, however, the hand does not tions time and experience must determine. As to the value of Profe or Fried rich's represent a- re '-ler-ite (or e ase), s. [After Dr. C. Ræ - ler, of Hanau; suff. -ite ( Min .).] rō-gā-tion, s . [Fr., from Lat. rogationem , acc us. of rogatio =an asking, from rogatus , pa. par. of rogo =to ask; Sp. rogacion ; Ital. rogazione .] tribunes of a law to be pa ed by the people. 1. Old Rom . Law : The demand by the consuls or Wednesday preceding Ascension-day, so called prob- rogation-days, s . pl . The Monday, Tuesday, and ably from the use of special rogations or litanies on those days. Ascension-day. Rogation-Sunday, s. The Sunday preceding gation-days occur.' rogation-week, s. The week in which the Ro- rō-ga-tõr-ỹ, adj . [Latin rogat ( us ), pa. par. of rogo to ask; Eng. adj. suff. -ory .] Seeking in for- mation; engaged in collecting information. requesting him to examine a witne . Law : A commi ion from one judge to another rogers-īte, s. [After Prof. W. B. Rogers; suff, -ite ( Min .).] cathode beam is accompanied by certain rays not before known, which, although of phosphorescent and photographic quality, differ from any known form of light in not being susceptible of refraction. These were the wonderful X-rays, which have opened up to the world a new region of scientific explora- tion. Besides obtaining radiographs of the bones in the living human hand Profe or Röntgen radio- graphed a compa card completely inclosed in a metallic box. From these and similar experiments he inferred that these newly discovered rays gener- ated in the neighborhood of the Crookes tube by the electric disturbance set up by the pa age of an electric current po e ed the property of pa ing through all bodies in their path, and that some bodies, being le permeable than others, cast a shadow. Subsequent experiments have established the fact that the transparency of a body to the X-rays is proportional to its density. As to the real nature of the X-rays eminent physicists differ, but all agree that they must be regarded as of a nature e entially different from ordinary light. They cast an invisible life-size shadow of the objects that obstruct their pa age, which invisible shadow if received on a surface which phosphoresces or glows under their action becomes a visible shadow, which makes the wonderful revelations of the fluoroscope po ible. If this invisible shadow is received on a sensitive plate, the plate is impre ed, and upon subsequent development the representation of the obstructing object is perpetuated on the photo- graphic plate. The Roentgen rays pa very free'y through the various ti ues and fluids of the body, but are obstructed by the bones; hence it is po iblo to take a perfect shadow-picture, or radiograph, as it is now generally called, of the bones of a living person or animal. By far the most important result of the discovery has been the application of the new rays to surgery. Radiographs of bones fractured, splintered or diseased, have been of much practical use in aiding diagnosis and treatment. Attempts more or le succe ful have also been made to radiograph internal organs and ti ues other than bones. Needles, bullets and other foreign objects in various parts of the body have been succe fully located, and the invention of the fluoroscope (q. v.) II. Eng . Law : A sturdy beggar; a vagabond, a has made it po ible to use the Roentgen rays, not vagrant. They were formerly liable to be punished only in surgical cases, in searching for fractures, by whipping, and having the ears bored with a hot etc., but to undertake anatomical studies and make iron. IMG:content-0708.png:[blocks in formation] IMG:content-0709.png:[blocks in formation] Botany : The typical genus of Rolandreæ. Only Rolandra, from the West Indies. known species Rolandra argentea , the Silver-leaved Lat. fan. pl. adj. suffer. rõ lăn-drě-æ, s. pl. [Mod. Latin rolandr (a); Bot .: A sub-tribe of Vernoniacem. play, from Lat. rotulus a wheel.] A part or char- role, s. [Fr. a roll, a scroll, a character in a rogues' gallery, s. A collection of photographs the use of police officers in detecting criminals. character is drummed out or discharged with dis- grace from a regiment or ship of war. roll, *roll-en, *roule, *rowle, v . t . & i. [O. Fr. roler (Fr. rouler ), from Low Lat. rotulo to roll, to middle of each strand of British dockyard rope to Sp. rollar , arrollar : Port. rolar ; Ital. rotolare; rogue's yarn, s. A worsted thread laid up in the revolve, from Lat. rotula , dimın. of rota =a wheel; prevent theft. A different color is used in each Dut. & Ger. rollen ; Dan. rulle ; Sw.rulla .] dockyard, in order to trace the maker of rope which proves defective. A similar precaution is taken with American naval rope. *1. The life of a vagrant or tramp; vagabondism. 2. Knavish or dishonest tricks; cheating, fraud. 3. To move in the arc of a circle. 2. To move anything on its axis. IMG:content-0710.png:[blocks in formation] 4. To wrap round on itself by rolling; to form 7. A register, a list, a catalogue, a category. into a spherical or cylindrical body by rolling. "I am not in the roll of common men." 5. To inwrap; to bind or wrap up in a bandage or the like. IMG:content-0711.png:[blocks in formation] 5. To ride in a carriage. "The wealthy, the luxurious, by the stre Of busine roused, or pleasure, ere their time, May roll in chariots." Words worth: Excursion, bk. ii. 6. To be formed into a cylinder or ball. 7. To spread out under a roller or rolling-pin; as, Dough rolls well. 8. To be to ed about from side to side; to rock, as in rough water. "The case of a ve el rolling at sea among waves."Brit. Quarterly Review, vol. lvii., p. 99 (1873). Shakesp.: Henry IV., Pt . I. , iii. 1. 8. A quantity of cloth, ., rolled or wound up in a cylindrical form; as, a roll of silk. 9. A small piece of dough rolled up into a cylindrical form before being baked; as, a French roll. 10. A cylindrical twist of tobacco. 11. A large, thick curl; as, to wear the hair in rolls. 12. The beating of a drum so rapidly that the sound resembles that of a rolling ball, or of a carriage rolling along a rough pavement; any prolonged, deep sound. "And it pa ed, like a glorious roll of drums." Long fellow: Slave's Dream. tremolo. ( Grove.) *13. Round of duty; particular office, function, or duty a igned or a umed; rôle. "In human society, every man has his roll and station a ign'd him."-L'Estrange. II. Technically : 1. Bookbinding : A bra wheel, engraved on the edge, for hand embo ing or gilding where a continuous line or pattern is to be impre ed upon the cover or back of a book. 2. Build .: A strip with a rounded top laid over a roof at the ridge or at lateral joints, to raise the sheet lead at those points. 3. Engr .: The cylindrical die in a transferring pre . "Icy seas, where scarce the waters roll." Pope: Windsor Forest, 389. 10. To tumble or fall over and over. "Down they fell By you sands, angel on archangel roll'd." Milton: P. L. , vi. 594. 11. To fluctuate; to move tumultuously. "Here tell me, if thou dar'st, my conscious soul, What diff'rent sorrows did within thee roll ." Prior: Solomon , ii. 830. 12. To wallow, to tumble; as, A horse rolls . 13. To emit a long, deep sound like the roll of a drum, . "All day long the noise of battle rolled." Tennyson: Mort d'Arthur, i. *14. To wander, to roam. "Man shal not suffer his wif go roule aboute." Chaucer: C. Т. , 2,326. *15. To be enrolled. "In the last list, I presume, you roll."- Foote : The Liar, i. 1. (1) To roll a drum: To beat a drum so as to produce a sound like that of a rolling body. [ROLL, 8., 12.] (2) To roll over : To kill, to shoot. "It is sheer nonsense to say that it is a simple task to roll rabbits over dead as they shoot acro a narrow drive."- Field, Dec. 6, 1884.