Scientific Intelligence. 
143 
We have been favoured with a sight of the first 28 numbers of this publication, and 
of a discourse, which accompanies it, on the objects, advantages, and pleasures of 
science : we shall give the titles of the subjects on which they treat for the informa- 
tion of our readers, adding our strongest recommendations of the work as one got up 
ra a very creditable style, and giving a very full and correct view of each subject 
and of the latest improvements in it. We refer to our cover for further particulars. 
1 Hydrostatics 
2 Hydraulics 
3 Pneumatics 
4 Heat Part I. 
5 Heat Part II. 
6 Mechanics 1. On the Mechanical Agents, or Prime Movers 
7 Do. 2. Elements of Machinery Part I. 
8 Do. Do. Do. Part II. 
9 Mechanics 
10 Account of Lord Bacon's Organum Scientiarum 
11 Mechanics 3. On Friction and the Rigidity of Cordage 
12 Optics. Treatise I. 
13 Optical Instruments Part I. 
14 Vegetable Physiology Part I. 
15 Electricity Part I. 
IB Mathematical Geography 
17 Arithmetic and Algebra Part I. 
18 An account of Lord Bacon's Novum Organum Scientiarum, Part II. 
19 Optics Part II. 
20 Life of Cardinal Wolsey 
21 Optical Instruments Part II. 
22 Electricity Part II. 
23 Physical Geography Part I. 
24 Life of Sir Christopher Wren 
25 Arithmetic and Algebra Part II. 
26 Thermometer and Pyrometer Part I. 
27 Outlines of General History Part I. 
28 History of Greece Part I. 
The first number ran through 5 Editions, the 2d through 4. The circulation of 
the work has already attained the number 20,000. 
We consider this project as one calculated to exercise a very great influence, over 
the character and happiness of the present, as well as the rising generation. 
2. Notice of some Tin Ore from the Coast of Tenasserim*. 
^appears from a communication fromMajorBuBNEY toMr. SecretarySwiNTON, 
hat some Chinese declare these deposits of tin to be superior to those of Junksey- 
™i and that the Burmese with their rude means obtained 55 per cent, of metal from 
“is ore, but that the Chinese have obtained 60 per cent. This appears highly probable, 
»s from the sample sent to me for examination, of which the greater portion is here 
Produced, I obtained upon an average of three assays 47 per cent, of pure tin ; but 
it wiU be observed, that the ore in this sample is but very partially separated from 
'J s matrix, in the constituents of tlie bed or deposit in which it occurs, which is ra- 
wer a tedious and laborious process, but generally a well executed task among the 
Cornish tinners in England, to whom the present sample would appear what 
rney would term half dressed, or but partiallv separated from the siliceous and 
Other earths, with which it was originally intermixed. Hence it may be concluded 
la b had the heterogeneous particles been carefully detached from this ore, it 
ought to yield 70 per cent, of metal smelted upon a large scale; and even as much as 
‘ * P er rent, in a crucible with a powerful flux, such as borax and anthracite ; about 
«“ eighth of the former, and a third of the latter in proportion to the weight of the 
sample assayed, but, where anthracite is not procurable, a double portion of close 
framed charcoal finely pounded, will be a tolerable substitute. 
. « may be observed that this tin ore is what the Cornisbraen term stream tin; which 
distinguished from mine tin by being found in the bottoms of streams, or other 
alluvial deposits, where streams have been, which have washed it away from the pa- 
u* This communication by D. Ross, Esq. joint Secretary of the Class of Natural 
and Physics of the Asiatic Society, was read at tile last meeting, as noticed 
e account of their proceedings, p. 140, 
