Mourns! Sepe Rio. | PROGRESS OF MICROSCOPICAL SCIENCE. 169 
Sir Roderick Murchison, Bart., being in the chair, supported by the 
President of the Geological Society, J. Prestwich, Esq., F.R.S., the 
Treasurer and Secretary, and a numerous assemblage of Mr. Morris’s 
friends. An address (the wording of which had been entrusted to 
Prof. Phillips, F.R.S., of Oxford), beautifully engrossed and illumin- 
ated on vellum, and framed in a suitable manner, was presented to 
Prof. John Morris by Sir R. Murchison, together with the proceeds of 
the subscription, and the Silurian chieftain made a most admirable 
speech, in which he was followed by Mr. Prestwich, both these gen- 
tlemen being among Prof. Morris’s earliest and most attached friends. 
In returning thanks, Mr. Morris (who was most heartily cheered) 
made a most touching and eloquent speech, in which he referred to 
his early geological labours and travels, nearly thirty years ago, in 
the company of Murchison and Prestwich. Mr. Prestwich afterwards 
read a letter just received by Mr. Hearn, the Secretary, from the 
venerable Prof. Sedgwick, expressing his regret that the infirmity of 
years prevented his being present, but assuring Mr. Morris of the 
cordial esteem and regard which he entertained for him and for his 
scientific labours. After all, the honour was long overdue. 
A curious Flesh Parasite has been figured “in the Lancet by Dr. 
Tilbury Fox. It is thought, he says, to possess jaws and to bite 
freely ; and certain of the wounds seen on the skin are regarded as 
having been produced by the bites of the pediculus. This is all a 
mistake. Prof. Schjodte has clearly shown that the pediculus is fur- 
nished with a peculiar sucking apparatus. The mouth is furnished 
with a labium, capable of being retracted into the upper part of the 
head. This lip is first inserted into a sweat-pore, and is then pro- 
truded. A row of hooks then hold to the parts around, and two pairs 
of seta are next protruded and applied together so as to form a tube. 
When the pediculus is sucking, soon a red speck is seen at the top of 
the head, which exhibits dilation and contraction; and this red color- 
ation is traced presently into and along the cesophagus and the intes- 
tines, which latter are seen to be in lively peristaltic action. The 
effect of the attack of the pediculus is to cause a little escape of blood 
into the follicle ; and it appears as a minute and, at first, bright red 
speck, the size of a couple of pin points—not raised, not itchy, and 
not removable by pressure. Occasionally some swelling takes place; 
but this quickly subsides. 
