688 



INDEX. 



Downie, Mr. M., On 

 Waterspouts, 265 



Drontheim, 22 



Druid Reef, 609 



Dublin Observatory, 16, 

 18 



Dubreuil's Vigia, 609, 611 



Duff'erin, Lord, On Cur- 

 rents of the Northern 

 Atlantic, 427 



Dunsink Observatory, 16, 

 18 



Dunsterville, Captain E., 

 Positions, 84 — 85 ; On 

 Winds and Currents of 

 the West Indies, 3(>8 ; 

 Sailing Directions, Ja- 

 maica to Maracaybo, 

 535—536 



Dust, Falls of, 09—100, 

 165—166, 568, 583, 621 

 —625 



Dvina Rock, 598, 608 



Dyet Rocks, 609 



Earth, The, EUipticity 

 and Mean Density, 9 ; 

 Relative Proportions of 

 Land and Water, 102 ; 

 Mean Height of the 

 Lond and Depth of the 

 Ocean, 102 



Easterly Drift Cur- 

 rent See North 



African Current. 



Echo Bank, 607 



Edinburgh Observatory, 

 12, 15 



Ehrenberg, Professor, On 

 Falls of Dust in the 

 Atlantic Ocean, 621, 

 623 



Eight Stones, 578, 605, 

 609 



Ellicott, Mr., On the 

 Gulf Stream, 384 



Elliott, Mr., On Hurri- 

 canes, 218 



Ellis, Mr. W., On Wind 

 Records at Greenwich, 

 203 



Embata, The, 581 



Emily Rocks, 584, 609 



England, Coast of. Posi- 

 tions, 8—12; Tides, 278, 

 279 



England Rock, 610 



English Channel, Winds, 

 206—207, 464, 465, 466 

 — 477 ; Tides, 278, 280 

 —281, 285, 462 — 403; 

 Sailing Directions, 462 

 — 466, 566 



Equator, Approaching 

 and Crossing the, — See 

 Passages. 



Equatorial Calms and 

 Winds, 99—100, 124, 

 152—156. (75) Defini- 

 tion of the "Doldrums," 

 & Remarks by Commr. 

 Maury. (76) Limits, 

 and Table of Extent. 

 (76—77) Crossing the 

 Calm Belt. (78) Capt. 

 Toynbee on Barometric 

 Indications. (79) Capt. 

 Maurv's " Cloud Ring," 

 and the " Rains." 

 Equatorial Counter- 

 Current — See Guinea 

 Current. 

 Equatorial Currents, 

 343—353, 527 

 North Equatorial Cur- 

 rent, 343—347. (302) 

 Origin, Course, and 

 Velocity. (303) Ob- 

 servations on H.M.S. 

 Challenger. (304) The 

 Westerly Drift. (305) 

 Limits and Rate for 

 each Month. (306) 

 Capt. Toynbee's Re- 

 marks. (307) Sources 

 of Estimate of Mean 

 Velocity. (308) List 

 of Bottles and their 

 Drift,byCapt. Becher. 



(309) Other Examples 

 of Bottle Drifts, &c. 



(310) Region of Divi- 

 sion between the two 

 Currents. 



South Equatorial Cur- 

 rent, 347—353. (311) 

 Course and Velocity. 

 (312) Direction is to 

 Westward. (313) Re- 

 marks by Lieutenant 

 A. H. B. Greevelink. 



(314) Influence of the 

 Trade Winds and 

 the River Marafion. 



(315) Observations on 

 H. M. S. Challenger. 



(316) Mr. Strachan's 

 Remarks. (317) Ob- 

 servations of Commr. 

 J. R. Bartlett and 

 Lieutenant Pillsbury, 

 U.S.N., and of Prof. 

 Agassiz. (318) Drift 

 of Bottles. (319) 

 Example of Extra- 

 ordinary Velocity. 



Esmeralda Rock, 610 

 Esperance Rocks, 610 

 Espihosa, Admiral, Sur- 

 veys, 87 

 Espy, Mr., On Hurricanes, 



217 

 Essequibo River, 581 



Establishment of the Port, 

 274 



Europa Rock, 575, 606, 

 608 



Evans, Capt. F. J., On 

 the Magnetism of Iron 

 Ships, 456, 665, 671— 

 675 



Evans, Lieut. John, On 

 Bayamo SqUalls, 144 — 

 145 ; On the Norths, 

 147 ; On Hurricanes, 

 218,227—228,234-241 ; 

 On the Sargasso Sea, 

 340 ; On the Mexican 

 Sea, 372—373 ; On the 

 Gulf Stream, 384. 411 ; 

 On Icebergs, 447. 



Evaporation, As a Cause 

 of Ocean Currents, 378 



Fseroe Islands, Positions, 

 49 ; Tides, 280 



Faithfull, Capt. H., Direc- 

 tions for Dcmerara 

 River, 537—538 



Falcon Rock, 578, 605 



Falconer Rock, 610 



Falmouth Harbour, 12 



False Bank, 591 



False Bermuda Rocks, 610 



Farewell, Cape, Currents, 

 431 ; Ice, 446 



Fernando Po, Positions, 

 &c., 41, 508 



Ferreira Reef, 576, 606, 

 608 



Ferrel, Professor W., On 

 Hurricanes, 218, 224 ; 

 On Temperature and 

 Ocean Currents, 378 



Ferrol Harbour, AVinds, 

 211 



Fidalgo, Don J. F., Sur- 

 veys, DO, 93 



Field's Vigia, 610 



Findlay, Mr. A. G., On 

 Oceanic Currents, 312 : 

 On the Gulf Stream, 373 



Finisterre, Cape, 478 — 

 479 ; Causes of Wrecks 

 near, 307, 308 — 309 



FitzRoy, Admiral, Sur- 

 veys, 49 ; Meteorology 

 of Equatorial Region, 

 128 ; Wind Charts, 171; 

 On Force of Wind on 

 Land and Sea, 206 ; On 

 the Seas of the Bay of 

 Biscay, 210—211 ; On 

 White Squalls, 260 ; On 

 Currents, 294 ; On 

 " Lanes " for Steamers, 

 554 ; Remarks on the 

 Barometer, 677—680 



Five Heads Rocks, 610 



Flemish Cap, The, 591 



