GENERAL SCIENCE. 



829 



Perigal, Henry, (cont.). Notes on the Kinematic effects of Revolution 

 and Rotation, with reference to the motions of the Moon, and of the 

 Earth, which are assumed in the present system of astronomy ; 

 with experimental illustrations. 8°. London, 1846-49. 



Contributions to Kinematics. Classification of Bi-Circloids, 



Curves of two Curvatures (in the same plane) the resultants of 

 two circular movements. 8°. London, 1849. 



Geometric Maps exhibiting the method of delineating Curves 



through the intersections of trigonometric lines. 



8°. London, 1853. 



Contributions to Kinematics. Folio. London, 1854. 



Plates of Curves in six sheets. 



The Moon Controversy, facts and definitions. 



8°. London, 1856. 



Revolution and Rotation. 8°. 1864. 



Perigaud. Expose de la Methode de Hansen ponr le Calcul des Per- 

 turbations speciales des petites planetes. (Paris, Theses Fac. Sci., 

 No. 387.) " 4°. Paris, 1877. 



Periilg, Richard. A Brief Enquiry into the causes of premature decay 

 in our wooden Bulwarks, with an examination of the means best 

 calculated to prolong their duration. 



8°. Plymouth-Dock, 1812. 



On the Preservation of the British Navy when in a state of ordi- 

 nary. 8°. Plymouth-Dock, 1813. 



A Reply to some strictures in the ' Quarterly Review ' (No. 



xix.) on Indian-built Ships ; to which are annexed recommenda- 

 tions for preserving the British Navy on the return of peace. 



8°. Plymouth-Dock, ] 814. 



A Treatise on the Anchor . . . with a table of dimensions from 



1 to 35 cwt. and a schedule of proportionate weights of anchors 

 . . . also some observations on the Chain Cable, showing the 

 proportion it bears to that of Hemp, and to the weight of the 

 anchor. 8°. Plymouth, 1819. 



Perkins, Benjamin Douglas. The Influence of Metallic Tractors on the 

 Human Body in removing rheumatism, pleurisy, some gouty affec- 

 tions, &c. . . . discovered by Dr. Perkins, and demonstrated by 

 Meigs, Woodward, Rogers, &c. ; by which the importance of the 

 discovery is fnlly ascertained, and a new field of inquiry opened 

 in the science of Galvanism or Animal Electricity. 



8°. London, 1798. 



See also Herholdt and Bafn : Experiments with Metallic 



Tractors. 



Perlachius, Andreas. Ephemerides pro anno 1528. 



12°. Vienna? Austria?, [1527.] 

 Pernumia, Joannes Paulus. Philosophia Naturalis ordine definitivo 

 tradita. Folio. Patavii, 1570. 



