440 PHILOSOPHICAL TRANSACTIONS. [aNNO 1730. 



gather in stiff concretions. And therefore, it must be acknowledged that 

 there would have been less hazard of stoppage, if our cannula had been 

 shorter, and wider, especially at the mouth. I cannot but think it an ingeni- 

 ous proposal of one of our ministers here, to make the pipe double, or one 

 within another ; that the innermost might safely and easily be taken out and 

 cleaned when necessary, without any molestation to the patient : for it is no 

 small trouble to him to be obliged to have the bandage frequently removed, and 

 the pipe fitted a-new to the orifice made in the trachea. 



And indeed we found no inconvenience in our patient's breathing the air as it 

 passed through the pipe, without any cleansing or intercepting medium, though 

 the house was none of the cleanest, being that of an ordinary tradesman. But 

 if by a larger tube, one, especially of more delicate and ticklish lungs, should 

 be incommoded that way, the access of dust, &c. might conveniently enough 

 be hindered by a piece of muslin, or thin hair-crape, tied slackly about the 

 neck over the orifice of the cannula, so however as not to touch it, or to be 

 wetted by the liquor coming from it. 



The patient was soon perfectly recovered : he breaths, speaks, eats, drinks, 

 and performs all the other offices of life, and goes about his calling as formerly. 

 And now the Doctor notices the needless pains some writers take, about heal- 

 ing up the wound by bandaging, stitching, &c. For we found it easily to fill 

 up of itself in a very few days, by only dressing it every other day or so with a 

 soft tent, made less and less every dressing, and armed in the common way 

 with liniment, arctei. He believes indeed it would have taken a little more time 

 to heal, if the patient had been older. 



Farious Celestial Observations made at Pekin, in the Years 1728 and 1729- 

 By Father Carbone. N" 4l6, p. 455. 



1. Several occultations of the fixed stars by the moon. 

 A1^ morning the moon covered v Leonis. 

 55 the star emerged. 



3 p. M. the moon covered r, of Cancer. 



2 the moon in conjunction with the Pleiades. 



O the moon covered v of Leo. 



2. Dec. 6, 1728, was a conjunction of the moon and Saturn, about 7 in the 

 evening. 



3. Several eclipses of Jupiter's satellites, of no use. 



4. A total eclipse of the moon, Feb. 14, 1729. 



At 2'' 38"" 30' morning, the eclipse began. 

 3 3g O the total immersion. 



