CONTENTS OF VOLUME FOURTH. 



DPage 

 R. WALLIS, on Extracting Surd Roots. . 1 

 E. Halley, Sun's Entrance into the Tropics . . 3 

 Dr. Baynard, on Rheumatism and Suppres- 

 sion ot Urine 9 



Dr. Connor, on the Vertebrae firmly united . . 10 



Biographical Account of Dr. Connor ibid 



On a Water-Spout, by Mr. Zachary Mayne 12 

 Account of Ridley's Anatomy of the Brain . . 13 

 Burning Mountain in the Isle ofTernate .... ibid 



The same in the Isle of Sorea ibid 



Demoivre, on the Use of Fluxions, ^c 14 



Biographical Notice of Mr. Demoivre ibid 



Mr. Halley, on Constructing Logarithms .... 18 



. , on a Proposition in Gunnery .... 27 



Account of Dr. 'Wallis's Mathemat. Works . . 29 



of Dr. Grevv's Tract, de Salis Cathar. 31 



Dr. Sampson, on a prematuie Child ibid 



On Tadraor, or Palmyra, by Wm. Halifax ... 33 

 Dr. Wailis, on Quadrable Cycloidal Spaces . . jp 

 Account of Woodward's Natural History. ... 41 

 Biographical Notice of Mr. Woodward ..... ibid 

 Account of Dr. Pitcairn's Dissert, de Febribus 46' 

 Biographical Notice of Dr. Arch. Fiicairn . . . ibid 

 Mr. Halley, on Cycloids and Epicycloids .... 47 

 Two Journeys from Aleppo to Pdlmyra .... 49 

 E. Halley, on the ancient Slate of Palmyra . . 6o 

 Dr. Wailis, on a horse slaked in ihe Stomach 04 

 Acco. of Agost. Sciila's La Vana Speculat. ike. 1)6 

 E. Halley, Analogy of Log. Tang, to Meridian 68 

 Ac. of Da. Gregory's Catopt. and Dioptr.Elem. 77 



Dr. Connor's Dis. Medico-Pliysicae . . ibid 



On a Substance like Butter, by Mr. R. Vans 78 



On ihe same, by the Bishop of Cloyne ibid 



Sir \^ m. Bteston, on the Barometer, &c 79 



Dr. Ed. Smyih, Soap-f^arth, near Smyrna .. . 80 

 Mr. Wilham Cowper, on Chylification .... 81 

 Catal. of Plants at Tangier, by Mr. Spotlswood 85 

 Mr. Ch. Bernard, two large Stones cut out, &c. 86 

 Mr. J. Harris, on Animalcules in Water, &c. 89 

 Account of Kennet's Parochial Aniiquities. ... 92 

 Dr. T. Robinson, on Henry Jenkins's Age . . . ibid 

 Leuwenhoeck, on Eels, Mites, Seeds, Sec. . . 94 

 Staph. Gray, Microscopical Experiments, &c. 97 

 Dr. Ed. Smyth, Use of Opium by the Turks 10! 



Child born with a Wound on the Breast 102 



Account of Dr. Sloane's Catalogus Plantarum 103 

 Dr.Sloane, Beans cast on shore at the Orkneys ibid 

 Mr. Wm, Cowper, on a large diseased Kidney 105 

 Dr. Ch. Preston, on Stones of ihe Bladder ... 109 

 Dr. Garden, on great Thunder near Aberdeen ibid 



On a Foetus without the Uterus 110 



E. Halley, on a Whelp voided by a Dog .... ibid 



Ra. I'horesby, on a Roman Pottery Ill 



Sir R. Sibbald, on Shells in Scotland ibid 



Account of J. Celsus de Vita et Rebus, &c. ..113 



Dr Ch. Preston, on the Dropsy, &c 114 



Cutting for the Stone in the Kiiiney 1 16 



Chr. Merret, on antiquities in Lincolnshire . . 117 

 VOL. IV. * 



Pa^e 

 Stephen Gray, on the Water Microscope .... 120 



Quantity of Rain at Greshani College 121 



Account of Seller's History of Palmyra 122 



Dr Ch. Preston, opening the Body of a Boy ibid 



Dr Lister, on the Juices of 1 'lants 1 23 



Isaac Newton's Solution of two Problems 



proposed by John Bernouilli \og 



Biographical Notice of John Bernouilli ibid 



Samuel Doudy, on an Hydrops. Pectoris .... 13 1 

 Account of Musei Pet veriani Centuria, &c. . . 132 



Biographical Notice of James Petiver ibid 



M. Giles, History of a Tumor, &c ibid 



Dr Molyneux, on a Scolopendra Marina . . . . 133 



Dr. Lister, on Grasses useful for Hay 136 



, on the long Worm in India 137 



Dr. Ch Preston, Internal Parts of Fish 138 



Isaac Newton, on Descents in a Cycloid, &c 140 

 Account of Dampier's Voyage round the \\ 'dl41 

 Biographical Notice of William Dampier .... ibid 

 Account of Plukenei's Ahnagestum Botan. ..ibid 



of the New Map of France 142 



E. Halley, on the True Theory of the Tides. . ibid 

 Dr. Ch. Preston, on a Child without a Brain . 149 



J. M. Lancisi, on Malpiglii's Death 151 



Biographical Notice of John Maria Lancisi . . ibid 



M. Giles, Origin of a Polypus 152 



Ace. ol W. Cockburn on Diseases of Seamen 154 



Continuation of the same Subject . . ibid 



D. Papin's Collec. of New Machines ibid 



Dr. Ch. Morley, on Uones voided per Anurn I55 

 Dr. Molyneux, large Horns dug up in Ireland 156 



On some Magnetical Experiments 161 



Account of Potter's Lycophronis Chalcid. Alex. ibid 

 Biographical Notice of abp. John Potter .... ibid 

 Dr. Richardson, on Fossil Wood in Yorkshire 162 

 Nic. Witsen, further Account of the Burning 



Mountains in the Moluccas 163 



Dr. Tyson, on a Brain depressed into the Neckl64 



, on a Sphacelated Brain, &c 165 



Oct. PuUeyn, on Ancient Inscript. at Rome ibid 

 Stephen Gray, on an Optic Lens of Water, 



and a Natural Reflecting Microsc.^ .... 166 

 Edward Coles, a Red Colour by a Mi vure &c. )67 



Mr. Hill, on Henry Jenkins's Ag ibid 



Pitch, Tar, and Oil, from a stone, by Mr. Ele 168 

 Account of Malpighi's Posthumous Works . . ibid 

 Dr. Slare, on the N° of Births, Deaths, &c.. . 169 

 Dr. Wailis, on the Antiquity of the Cycloid . . ibid 

 Dr. Lister, on the Dissection of the Scallop . . 170 



E. Halley, on large H^il at Chester 171 



Another Account of the same 172 



R. Taylor, Hail Siorra in Hertfordshire .... ibid 



A great Hail SiDrm in Herefordshire 173 



On the same in Monmouthshire ibid 



Dr. Preston, on a Foetus voided by the Navel. . ibid 

 E. Halley, Measurement of Snowden-hill by 



the Barometer 174 



Account of M. ie Comte's Memoirs of China 175 



