A Sketch of his Work as a Craniologist. 36 



APPENDIX. 



The following appendix consists of reprints from some of 

 Grattan's unpublished work. Plate (I) is a drawing of Grattan's 

 craniometer. The explanation of this plate and the description of 

 the method of using the craniometer are reprinted from the paper 

 prepared by Grattan, but unpublished at the time of his death. 



Plate II. is reproduced from one made by Grattan to illustrate 

 his method of cranial measurements. It has been reduced to 

 about firds of the size of the original figure. A somewhat similar 

 illustration will be found in the Ulster Journal of Archaeology, 

 Vol. VI., 1858, showing a profile view of the dimensions of 

 Spurzheim's skull. 



A table has also been added showing Grattan's scheme of skull 

 measurement ; some facial measurements have been omitted. 



EXPLANATION OF PLATE I. 



Grattan's Craniometer. 



A. — A fiat Board, 20 inches square, and ^|ths of an inch thick, 



forming the stand of the Instrument. 

 B. — A movable wooden foot, 9 inches long, 3 broad, and 1 



thick. It narrows to }( of an inch in front, where it has 



affixed to it a brass mounting, which carries the Pivot P. 

 C. — Nut and screw for securing B to A. 

 D. — A wooden upwright, 12x3X1 inches, firmly mortised into 



the foot B. 

 E. — A brass frame attached to I) by means of pivot F, upon 



which it can be made to rotate in a vertical plane. Its 



centre (the pivot F), is 9 inches above the board A ; and 



its arms project forward 7^ inches from D, and are 7)4 



inches apart. 

 F — The pivot and nut which secure E in its place, and allow 



of its being fitted and rotated at will. 

 G. — A second brass frame or stage, attached by its extremities 



to the extremities of E. 



