35 New experimental Researches 
3d. That in syllables prosodially short, the present short 
sounds of all our vowels should, as far as possible, be retained: 
but where impracticable or ungraceful, as in the first and last 
syllable of diz, or the second syllable of recubans, that then the 
long sound shortened in its dimensions be introduced. Here too 
it must be noticed, that all half-articulated or muttered sounds 
are inadmissible— such as that with which the generality of 
readers distinguish or rather eax-tinguish the second syllables of 
Tityre and Tegmine, which syllables should necessarily be read 
as if written feé and mee ; for otherwise these words, in place of 
becoming Dactyls, would be converted into a species of Cretic, 
thus —o >. 
4th. That the iteration of consonants, as the A of AiaAddus, 
the / of Amaryllida, &c. being foreign to our English usage, and 
uow rendered needless, should never be attempted. 
oth. That in order to obviate all drawling habits, the com- 
paratively unemphatic long syilables should, when expedient, yield 
the precedence, in length, to the more emphatic long ones. 
[To be continued. | 
IX. New experimental Researches on some of the leading Doc- 
trines of Caloric; particularly on the Relation between the 
Elasticity, Temperature, and latent Heat of different Va- 
pours; and on thermometric Admeasurement and Capacity. 
By Axprew Ure, M.D. 
Glasgow, July 1817. 
1. On the elastic Force of Vapours, with new Formule to de- 
termine it at any Temperature; anda Review of those given 
by Daron and Bior. 
Ts E phenomena attending the conversion of liquids into elastic 
fluids, were first accurately investigated by Dr. Black. He ob- 
‘served in the rising of vapour, and melting of ice, a beautiful sy- 
stem of relations, connecting and modifying the grandest opera- 
tions of nature, while they were destined to afford new principles 
for the advancement of the arts. If it be the prerogative and 
characteristic of genius, to discover in the most familiar, or, as 
some would say, vulgar phenomena, that mystic chain of causa- 
tion, which had eluded all other eyes, unquestionably, the doc- 
trines of Jatent heat entitle their author to rank in the first class 
of philosophers. 
Dr. Black directed his attention principally to the establish- 
ment of the general laws, which he placed on an immoveable 
* From the Transactions of the Royal Society for 1818, Part II. 
basis 5 
