J. CUNDEE, PRINTER

LONDON

[CONTENTS.]

VOL. II.

LETTERS AND PAPERS ON PHILOSOPHICAL SUBJECTS.
Physical and meteorological observations, conjectures and suppositions[1]
On water-spouts[11]
The same subject continued[13]
Water-spouts and whirlwinds compared[19]
Description of a water-spout at Antigua[34]
Shooting stars[36]
Water-spouts and whirlwinds[37]
Observations on the meteorological paper; by a gentleman in Connecticut[45]
Observations in answer to the foregoing, by B. Franklin[49]
Observations on the meteorological paper; sent by a gentleman in New York to B. Franklin[51]
Answer to the foregoing observations, by B. Franklin[55]
Gentleman of New York in reply[58]
Account of a whirlwind at Maryland[61]
On the north east storms in North America[63]
Meteorological imaginations and conjectures[66]
Suppositions and conjectures towards forming an hypothesis, for the explanation of the aurora borealis[69]
On cold produced by evaporation[75]
On the same subject[83]
Concerning the light in sea-water[88]
On the saltness of sea-water[91]
On the effect of air on the barometer, and the benefits derived from the study of insects[92]
On the Bristol waters, and the tide in rivers[95]
On the same subject[102]
Salt-water rendered fresh by distillation.—Method of relieving thirst by sea-water[103]
Tendency of rivers to the sea.—Effect of the sun's rays on cloth of different colours[105]
On the vis inertiæ of matter[110]
On the different strata of the earth[116]
On the theory of the earth[117]
New and curious theory of light and heat[122]
Queries and conjectures relating to magnetism and the theory of the earth[125]
On the nature of sea coal[125]
Effect of vegetation on noxious air[129]
On the inflammability of the surface of certain rivers in America[130]
On the different quantities of rain which fall at different heights over the same ground[133]
Slowly sensible hygrometer proposed, for certain purposes[135]
Curious instance of the effect of oil on water[142]
Letters on the stilling of waves by means of oil[144]
Extract of a letter from Mr. Tengnagel to Count Bentinck, dated at Batavia, the 5th of January, 1770[154]
On the difference of navigation in shoal and deep water[158]
Sundry maritime observations[162]
Remarks upon the navigation from Newfoundland to New-York, in order to avoid the Gulph Stream on one hand, and on the other the shoals that lie to the southward of Nantucket and of St. George's Banks[197]
Observations of the warmth of the sea-water, &c. by Fahrenheit's Thermometer, in crossing the Gulph Stream; with other remarks made on board the Pensylvania packet, Capt. Osborne, bound from London to Philadelphia, in April and May, 1775[199]
Observations of the warmth of the sea-water, &c. by Fahrenheit's thermometer; with other remarks made on board the Reprisal, Capt. Wycks, bound from Philadelphia to France, in October and November, 1776[200]
A journal of a voyage from the Channel between France and England towards America[202]
On the art of swimming[206]
On the same subject, in answer to some enquiries of M. Dubourg[210]
On the free use of air[213]
On the causes of colds[214]
Dr. Stark, and Dr. Letsom[215]
Number of deaths in Philadelphia by inoculation[ibid]
Answer to the preceding[217]
On the effects of lead upon the human constitution[219]
Observations on the prevailing doctrines of life and death[222]
An account of the new-invented Pensylvanian fire-places[225]
On the causes and cure of smoky chimneys[256]
Description of a new stove for burning of pitcoal, and consuming all its smoke[296]
Method of contracting chimneys.—Modesty in disputation[317]
Covering houses with copper[318]
On the same subject[320]
Paper referred to in the preceding letter[322]
Magical square of squares[324]
Magical circle[328]
New musical instrument composed of glasses[330]
Best mediums for conveying sound[335]
On the harmony and melody of the old Scotch tunes[338]
On the defects of modern music[343]
Description of the process to be observed in making large sheets of paper in the Chinese manner, with one smooth surface[349]
On modern innovations in the English language and in printing[351]
A scheme for a new alphabet and reformed mode of spelling; with remarks and examples concerning the same; and an enquiry into its uses, in a correspondence between Miss S—— and Dr. Franklin, written in the characters of the alphabet[357]
Rules for a club formerly established in Philadelphia[366]
Questions discussed by the Junto forming the preceding club[369]
Sketch of an English school; for the consideration of the trustees of the Philadelphia Academy[370]
Advice to youth in reading[378]

PAPERS ON SUBJECTS OF GENERAL POLITICS.
Observations concerning the increase of mankind, peopling of countries, &c[383]
Remarks on some of the foregoing observations, showing particularly the effect which manners have on population[392]
Plan by Messieurs Franklin and Dalrymple, for benefiting distant unprovided countries[403]
Concerning the provision made in China against famine[407]
Positions to be examined, concerning national wealth[408]
Political fragments, supposed either to be written by Dr. Franklin, or to contain sentiments nearly allied to his own[411]
On the price of corn, and management of the poor[418]
On luxury, idleness, and industry[424]
On smuggling, and its various species[430]
Observations on war[435]
Notes copied from Dr. Franklin's writing in pencil in the margin of Judge Foster's celebrated argument in favour of the impressing of seamen[437]
On the criminal laws, and the practice of privateering[441]
A parable against persecution, in imitation of scripture language[450]
A letter concerning persecution in former ages, the maintenance of the clergy, American bishops, and the state of toleration in Old England and New England compared[452]
On the slave trade[459]
Account of the highest court of judicature in Pensylvania, viz. The court of the press[463]

[LIST OF THE PLATES]

PLATE V.Water-Spoutsfacing page [16]
PLATE VI.Maritime Observations[163]
PLATE VII.A Chart of the Gulph Stream[197]
PLATE VIII.Pensylvania Fire-Place[235]
PLATE VIII*.Profile of the Pensylvania Chimnie[238]
PLATE IX.Remedies for Smoky Chimnies[269]
PLATE X.Stove for Burning Pit-Coal[297]
PLATE XI.A Magic Square of Squares[327]
PLATE XII.A Magic Circle of Circles[328]