CATALOGUE. APDLICATIOJ; OF HYDRAULIC FORCES, SEAMANSHIP. 239 



Each pair of the 4 sails of a windmill being 6a feet Fr. 

 long from top to top, and fl feet wide, or a little more, and 

 being inclined from 60° to 79° or 84°, the wind blowing 

 20 feet in 1", Eibout 15 miles E. an hour, looo pounds Fr, 

 were raised 218 feet Fr. in a minute : and this, on an ave- 

 rage, could be performed eight hours in the day. The whole 

 force without impediment would raise the tame weight 253 

 feet in a minute. 



Mills. E. M. A. V. Art. Meunier. 

 Essay on windmills. 8. R. I. 

 Enc. Br. Art. Stnokejack. 

 LangsdorFs hydr. Pi. 14, 15,50. 

 Wiseman's patent sails with horizontal levers. 



Repert. IV. 12. 



The sailsofa horizontal windmill changing their position 

 in different parts. 



Maunsel'shorizontal windmill. Repert. VII. 6. 



With moveable wind boards. 

 Gower on the vanes of vertical windmills. 

 • ' Ph. M. IV. 174. . 



Recommends an inclination between 80° and ao°. 

 Beatson on vertical and horizontal windmills. 



8. Lond. 1798. R. I. 

 Beatson's patent horizontal mills. Repert. ii. 



II. 13. 

 Brayshay's patent horizontal windmill. Rep. 



ii. I. 



It is an advantage that the sails should be short and wide. 

 The axis is placed obliquely to the horizon, so as to allow a 

 space between the sails and the lowest part of the mill, both 

 for convenience, and in order to give the wind room to act 

 on the sails when near the ground. 



fVind and Water comhined. Seaman- 

 slap in general. 



Navigation. See astronomy. 



Renaud Manoeuvre des vaisseaux. 



Groignard. 



Bernoulli's theory of the manoeuvres of ships. 



A. P. 1714. H. 107. 

 Pilot Theoric de la manoeuvre des vaisseaux. 



Ace. A.P. 1731. H. 81. 

 Bouguer's problems relative to the manoeuvres 



of ships. A. P. 1754. .^42. H. 91. 1755. 

 355, 481. H. 83, 135. 

 *Bouguer Manoeuvre des vaisseaux. M. B. 

 Ace. A. P. 1757. H. iGj. 

 Extract in Bezout Coursde niatheniatiques. 

 Clairaut's problems on the manoeuvres of 



ships. A. P. 1760. 171. H. 141. 

 Elder Scientia navalis. 4. Pctersb. 1749. 



M. B. 

 jEw/fz-Theorie de la construction etde la ma- 

 noeuvre des vaisseaux. 8. R. S. 

 Euler on the construction of vessels. 8. Lond. 



1790. R. I. 

 Bourde de Villelmet Theorie des mouvemens 

 du navire. 



Ace. A. P. 1765. H. 91. 

 Engl. 4. Lond. 

 Franklin's maritime observations. Am. tr. II. 



294. Roz. XXXI. 224. 

 -Leroy's letters on maritime affairs. Roz 

 XXXII. 209, 288. XXXIIL 136. 

 XXXVII. 42. 

 Blondeau Scier^ce du navigateur. 4. R. S. 

 Juan Examcn maritimo. 2 v. 4. Madr. 



1771. French, by Levcque. Paris, 1783. 

 E. M. Marine. 3 v. By Blondeau and Vial 



du Clairbois. 

 Elements of rigging and seamanship. 2 v. 4. 

 Lescailler Vocabulaire de marine. 

 *Jiomme Art de la marine. 4. Paris, 1787. 



Extract. Pap. on N. A. II. i. 46. 

 Papers on naval architeclure. 2 vol. 8. Lond. 

 R. I. 

 "*Liierature of shipbuilding, by Captain 



Muller. I.ii. 1. 

 Petty'soutlineof naval philosophy. I. i.SO. 

 Falconer's marine dictionary. 4. 1789. R. I. 

 Ciscdr Maquinas y nianiobras. f. Madrid, 



1791. B.B. 

 Hutchinson's seamanship and naval archi- 

 tecture. 4. 1794. II. I. 



