426 PHILOSOPHICAL TRANSACTIONS. [aNNO iSQp. 



The veins were neither larger nor more in number than usual. Upon the brain, 

 over the lateral ventricles, I could easily discern three or four lymphatics ; but 

 they were too small to be traced. Whether this great effusion of water was 

 caused by an obstruction in the capillary arteries, (which might make the finer 

 part of the serum ouse through their coats,) or by a rupture in the lymphatics, 

 could not be determined. 



The mother of the child brought it to Oxford, for a show. The account 

 she gave of it was, that she was in travail 3 weeks, and that at last she was 

 forced to have the vagina ripped for its passage. The child was 2 years and 6 

 weeks old, and it could speak a little, but could neither walk nor hold up its 

 nead ; it was always merry, never subject to drowsiness, pain in the head, want 

 of appetite, or indigestion. Its sight was somewhat dim, and its smelling but 

 dull. It never had any illness, only 2 or 3 days before it died it was very much 

 troubled with the gripes, and on opening the abdomen the guts were found ex- 

 tremely swelled with wind. Every thing else in both the lower cavities was in 

 the natural state. 



By comparing those two hydrocephali which Tulpius gives an account of, we 

 may see how different each of them is from this. For his first was a boy 5 

 years old, the skull no larger than a man's, and only 5 pints of water in it; the 

 brain had lost all its shape, and most of its substance, the relics of which stuck 

 to the skull. He says nothing more of the latter, than that it had a quart of 

 water in one of the lateral ventricles. 



Some Observations on the Mercury's Altitude, with the changes of the Heather 

 at Emiiy in China. Lat. 24° 20' N. By Mr. James Cunningha7n. N° 256, 

 p. S23. 



The weather at the above place, as appears by this journal, was variable, like 

 that at most other places in middling latitudes, sometimes clear, or cloudy, rainy, 

 windy, or calm, &c. The height of the barometer mostly between 29 and 30 

 inches. The height of the tides about 3 fathoms, or ]8 feet ; about half a foot 

 higher 3 days after the full moon. 



Dr. David Gregory's Observations on the Eclipse of the Sun, Sept. 13, 1G99, 

 in a Letter to Dr. Sloane, dated Oct. 12, 1699, Oxford. N° 256, p. 330. 



I send you a scheme of the phases of the late eclipse of the sun, as I ob- 

 served them. I did not see the beginning of it : but the end happened here 

 precisely 24 minutes and 9 seconds after lO o'clock in the morning, apparent 

 time : the greatest observation, which was 10 digits and a quarter, was about 7 

 minutes after 9. . ^ 



