125 



except at three distinct points, through one of which the contents were 

 discharged. 



Dr. Bond's note of the case is accompanied with drawings repre- 

 senting the tumour as to colour, size, vascularity and situation. The 

 sac filled and burst repeatedly, — the fluid discharged becoming, at 

 each successive opening, more and more turbid, and lastly puriform; 

 while the sac acquired after each opening, an increased thickness and 

 consistency. In the first six weeks, the health of the infant suffered 

 but little; but at length it began to be emaciated, and to be much 

 distressed, but was greatly relieved of uneasiness after each discharge. 

 It died on the 69th day. 



The third drawing, by Drayton, exhibits the tumour and the spine 

 dissected. The lower terminus of the spinal cord was found within 

 the sac; that is to say, it had passed out of the spinal canal, and with 

 its terminal nerves was enveloped in the thickened membranes and 

 tissues of which the sac was composed — chiefly dura mater altered by 

 inflammation. 



Dr. Bond refers to two cases treated by Sir Astley Cooper. He 

 was deterred from making punctures in the tumour in this case, and 

 it is evident from the dissection, that such treatment would have been 

 unavailing. 



The Committee, consisting of Dr. Patterson, Mr. E. Morris, 

 and Professor Kendall, on Mr. Nulty's communication, entitled 

 " Supplementary Note on the Construction and Different Forms 

 of the Magic Cyclovolute," as published in the Transactions 

 of the Society, Vol. IV. 1835, recommended the publication of 

 the same in the Transactions. Publication was ordered accord- 

 ingly. 



The particular arrangement there described, the author deduces in 

 his present paper from a combination of elementary magic squares of 

 peculiar forms, and shows that from different combinations of such 

 squares, and with attention to every property involved in the original 

 drawing, there may be constructed 768 magic cyclovolutes. A slight 

 limitation with regard to secondary properties enables him to extend 

 the number of arrangements to 6144; and these he further increases 

 to 55296 different magic cyclovolutes, with all the general properties 

 enumerated in his first paper. 



In connexion with his subject, the author presents a new magical 

 arrangement, analogous to that employed by Dr. Franklin in the 

 construction of the magic circle; but which, including more extensive 

 VOL. IV. — R 



