LOG 



LON 



perfect by strict logical examination and 

 correction. 



Mood and figure are words applied by 

 logical writers to denote the arrange- 

 nitiit uf the terms of a syllogism. It is 

 done by the use of the letters A, E, I, O, of 

 which A denotes universal affirmative ; E, 

 universal negative ; I, particular affirma- 

 tive ; and O, particular negative. But as 

 it would be difficult to retain in the me- 

 mory the various changes in the order of 



LOGISTIC curve, the same with that 

 otherwise called logarithmic. See LOGA- 

 RITHMIC. 



LOGISTIC spiral. See LOGARITHMIC 

 and SPIRAL. 



LOGISTIC A numeralis, the same with 

 algorithm. See ALGORITHM 



LOGISTICAL arithmetict the doctrine 

 of sexagesimal fractions. See SEXAGE- 

 SIMALS. 



LOGOGRAPHY, a method of printing, 



these letters, if prefixed to the three parts in which the types, instead of answering 



of a s) 'llogism, fourteen artificial words 

 have been formed, of three syllables each, 



only to a single letter, are made to corre- 

 spond to whole words. The properties 



containing the vowels so to be prefixed of the logographic art are, 1. That the 

 in the order of the mood to be denoted compositor shall have les* charged upon 



his memory, than in the common way. 

 2. It is much less liable to error. 3. The 

 type of each word is as easily laid hold 

 of as that of a single letter. 4. The de- 

 composition is much more readily per- 

 formed. 5. No extraordinary expense, 



by each word. The fourteen moods are 

 classed under these different figures, by 

 which terms logicians mean to denote 

 the particular situation of the middle 

 term, with respect to the major and 

 minor. The first figure is distinguished 



by the middle term being the subject of nor greater number of types, is required 



the major, and predicate of the minor in the logographic, than in the common 



proposition, and its four moods are de- method of printing. 



noted by the words Barbara, Celarent, LOLIUM, in botany, ray grass, a genus 

 Dam, Fm'o. The second figure admits of of the Triandria Digynia class and or- 

 negative conclusions only, the major being der. Natural order of Gramineae, or 

 always universal, and one of the premises grasses. Essential character : calyx one- 

 negative. Its moods are Cesare, Games- leafed, fixed, many-flowered. There arc 

 tirs, FesUno, Baroco. And in the third five species. 



figure the middle term is the subject of LOMENTACE.K, in botany, the name 

 both premises, the minor affirmative, and 

 the conclusion particular. Its moods are 



DarapU', Fdflpton, D//m/s, Datisz, Bo. 



of the thirty-third order in Linnseus's 

 Fragments of a Natural Method, consist- 

 ing of plants, many of which furnish 



cardo, Fm'son. We shall not extend our beautiful dyes, and the pericarpium of 



which, universally a leguminous pod, 

 contains seeds that are farinaceous or 

 meally like those of the bean. The cas- 

 sia, wild senna ; haematoxylon, logwood ; 

 mimosa, sensitive plant, &c. are of this 

 order. 



LOMONITE, in mineralogy, is of a 

 snow white colour, vyith a slight tendency 

 to reddish white. It occurs massive ; the 

 fracture is foliated, and the surface of the 

 folia are streaked, which gives a peculiar 

 glimmering aspect to the surface of the 

 fossil ; it is ei 



article to exemplify these moods, nor 

 shall we proceed to give instances of the 

 form and complexities of syllogisms, 

 which systematic writers have been more 

 solicitous to enumerate and name, than 

 to analyze and develope. In like manner 

 we shall pass over the consideration of 

 the various sophisms treated of by them, 

 because these objects would lead us too 

 far, and their detection follows imme- 

 diately upon a statement of the premises 

 and conclusions according to rule. And 

 upon the whole, we shall conclude by 

 observing, that though the old logic was 

 burdensome, from the manner in which 



it is easily frangible, and not heavy : 

 when preserved from the air it has a 

 slight degree of coherence ; but it it is 



it had been suffered to enlarge itself, yet, exposed to the action of that fluid, the 

 since much of our present modes ofrea- folia spontaneously separate from each 

 soning, and of the expressions made use other, and it is soon reduced to a heap of 

 of at the bar, in the senate, an J among unconnected parts. It forms a kind of 

 our best writers, are derived from its jelly with acids, and is found r.\ the lead 

 rules, and since the moderns, when they mines of Huelgoet in Lower Brittany. 



.1 j i ._...._... _i :.. i ,11. i . 



decried and rejected it, have not been 

 solicitous to establish any determinate 

 or correct system, we deem it entitled to 

 more attention than has usually been paid 

 to it. 



It received its name from Gillet Lau- 

 mont, who discovered it about twenty 

 years ago. 



LONCHITES, in botany, a genus of the 

 Cryptogaima Filices class and order,. Na- 



