S E S 



S E S 



his departure from Ei^ypt, he ingratiated himfelf with the 

 people by many a£ls of kindnefs, and made a divifion of the 

 country into thirty-fix departments, to each of which he 

 affigned a governor. Then having conftituted his brother 

 Armais regent, he marched with a numerous army into 

 Ethiopia, which he rendered tributary, penetrating near to 

 the llraits of Babelmandeb. As he now perceived that he 

 could ujt carry on his great defigns without a navy, he 

 fitted out two fleets, notwithftanding the averfion of the 

 Egyptians to maritime occupations, one in the Mediter- 

 ranean and the other in the Red fea. By means of the 

 former he reduced the courts of Phoenicia, Cyprus, and 

 feveral of the Cyclades, and with the latter he failed into the 

 Indian gulf, and made himfelf mafter of its coafts. Then, 

 purfuing his conquefts by land, he is reprefented as having 

 over-run all Afia, and even as having crofled the Ganges. 

 On his return, he invaded the country of the Scythians and 

 Thracians, in which, however, he loft a great part of his 

 army. It is commonly thought that he left an Egyptian 

 colony at Colchos, but Thrace was his fartheft progrefs 

 weftward. On his arrival at Pelufium, after an abfence of 

 nine years, laden with fpoils, and attended with a vaft num- 

 ber of captives, he was received by his brother Armais with 

 pretended joy and fubmiffion, though he had formed a plot 

 againll him. For this traiterous attempt he expelled Armais 

 from Egypt, and then, difbanding his army, he fat down to 

 the improvement of his country. He erefted magnificent 

 temples in all the cities of Egypt, in the budding of which 

 none but his captives were employed. He raifed obelilks, 

 with infcriptions recording his conquells and revenues. He 

 built a wall of great length, on the eaftern boundary of 

 Egypt, to proteft it from the incurfions of the Arabians, 

 and he dug a number of canalf, branching from the Nile in all 

 direftions, for the purpofe both of commerce and naviga- 

 tion. He is faid, in the height of his pride, to have har- 

 nefled tributary kings to his chariot, till one of them, point- 

 ing out to him the rotation of the wheels, by which each 

 part was fiicceflively at top and bottom, brought him to re- 

 fleftion. Becoming blind in his advanced years, he finifhed 

 his courfc by a voluntary death. 



It may be obferved that fir Ifaac Newton has endeavoured 

 to prove that Sefoltris is the Ofiris of the Egyptians, and 

 the Bacchus of the Greeks, as well as the Sefac of fcrip- 

 ture. Univer. Hift. 



SE6QUI, a particle often ufed by old mailers and 

 theorifts, in Mufic, in the compofition of words to exprefs 

 different kinds of meafure. They called fefquialter meafures 

 thofe which contain notes equal to one-third more than their 

 ufual value ; that is, when equal to three notes of lefs value, 

 inllead of two. This happened in what was called perfcS 

 time, before the life of points or dots, when the breve was 

 equal to three femibreves, the femibrevc to three minims, &c. 



In Italian treatifts by old tlieorilts, fefqui is much ufed to 

 exprefs a kind of ratio, particularly in different fpccies of 

 triples ; that is, when the greater term contains the le(s 

 once, and fome fmall quantity more ; as 3 : 2, when the 

 firll term contains the fecond, and unity over, wliich is the half 

 of 2. So that if the part remaining be jull half the lefs 

 term, as 4 : 3, the ratio is cMvdfrfrjn't terza, or tertia ; if a 

 fourth, or 5 : 4, the ratio m fefqui quarto, and fo on to in- 

 finity ; Hill adding to fefqui tlie ordinal number of the lefs 

 term. 



SESQUIALTER. is a Hop in the organ, implying a 

 whole and a half. In large organs this flop has ufually 

 five ranks of pipes, each note having one lound iu unifon witn 

 the diapafon, one with the principal, one with the twelfth, 

 and one with the fifteenth. 

 7 



SESQUI-ALTERATE, the greater perfeB, which is a 

 triple where the breve is three mcafuies, or femi-breves, and 

 that without having any point or dot annexed to it. 



Sesqui-alterate, greater imperfeS, which is where the 

 breve, when pointed, contains three mealurcs, and without 

 any point, two. 



Sesqui-alterate, lejjlr perfeB, which is where the 

 femibreve contains three meafures, and that without any 

 point. 



Sesqui-alterate, lejfer imperfect, a triple, where the 

 femibreve, with a point, contains three meafures, and two 

 without. 



According to Buontempi, one may likewife call the 

 triples 4 and '/> fefqui-alterates. 



Sesqui-alterate, in Geometry and Jlrilhmetic, is a ratio 

 between two lines, two numbers, or the like, where one 

 of them contains the other once, with the addition of a 

 half. 



Thus 6 and 9 are in a fefqui-alterate ratio ; fince 9 con- 

 tains 6 once, and 3, which is the half of fix, over ; and 20 

 and 30 are in the fame ; as 30 contains 20, and half 20 or 10. 



SESQUIDITONE, in Mufic, a concord, refulting 

 from the founds of two ilrings, whofe vibrations, in equal 

 times, are to each other in the ratio of 5 to 6. See Ditonk 

 and Interval. 



SESQUIDUPLICATE Ratio, is when of two terms, 

 the greater contains the lels twice, and half the lefs remains ; 

 as 15 and 6; 50 and 20. 



SESQUI-OCTAVE, is a kind of triple, marked C|, 

 called by the Italians nonupla di crome, where there are 

 9 quavers in every meafure or bar, in lieu of 8. 



SESQUIQUADRATE, an afpeit, or pofition of the 

 planets, when at tlie diftance of four figns and a half, or 135 

 degrees, fr»m each other. 



SESQUI-QUARTA, Dupla, is a kind of triple, 

 marked C;;, called by the Italians nonupla di fememinime, 

 where there are 9 crotchets in each meafure, inftead of 4 ; 

 that is, three crotchets to each time. 



SESQUIQUINTILE, an afpedt of the planets, when 

 108 degrees diftant from each other. 



SESQUITERTIONAL Proportion. When any 

 number or quantity contains another once and one-third, they 

 are fefquitertional proportions. 



SESSA, in Biography, an Indian philofopher and mathe- 

 matician, and the inventor of the game of chefs, which he 

 communicated to his fovcrcign Scherara, who was fo pleafed 

 with it, that he ordered him to demand what he pleafed as 

 a reward for his ingenuity. Sella aflced only for a fingle 

 grain of wheat to be laid on the firtt fquare, two on the fe- 

 cond, four on the third, and fo on in progrcffion through 

 the fixty-four fquares. The king, offended that he (houlj 

 demand fo mean a gift, direfted that he (hould have jull what 

 he afl<ed, and no more ; but upon coming praftically to the 

 bufinefs, it was, in a very Ihort time, found that all the gra- 

 naries in the kingdom would not lupply the demand. Sche- 

 ram, aitonifhed at the fad, crowned Seffa with very high 

 honours. He lived about the eleventh century. 



Sessa, in Geography, a town of Naples, in Principato 

 Citra; 23 miles S.W. of Cangiano. 



Sessa. See Seeza. 



SESSEA, in Botany, a Peruvian genus of plants, dcdi- 

 cated by the authors of the fplendid Flora Peruviana, to the 

 honour of a Spanifh botaniit, named Martin Seffeo, to whom 

 the care of the botanic garikn at Mexico was entrulled. 

 — Poiretin Lamarck Dirt. v. 7. 139. " Ruiz .ind Pavon, 

 Fl. Peruv. v. 2. 9." — Clafs and c.rdor, Penlandria Monogynia. 

 Nat. Ord. Luridft, Lmn. Solaiiet, JuU. 



Gen. 



