^o'SSS.JuSTiff] PKOCEEDINGS OF SOCIETIES. 373 
ledge of his great worth, and vast attainments. They had, therefore, 
resolved to propose to the Fellows that they should elect Mr. Busk as 
an Honorary Fellow. 
The resolution was passed nem. con. 
The names of gentlemen who were to be balloted for were then 
read. 
Mr. Slack announced that Mr. Field, of Birmingham, had sent a 
dissecting microscope for the inspection of the Fellows ; and that it 
would be upon the table for that purpose at the close of the pro- 
ceedings. 
The President then called upon Mr. B. T. Lowne, M.K.C.S., to 
read a paper on " The Eectal Papillae of the Blow-fly." 
No discussion followed the reading of this paper, and a vote of 
thanks was unanimously passed to Mr. Lowne for his interesting 
communication, which the President said he confessed to have been 
entirely new to him, and he presumed to most of the Fellows present. 
The President then requested Mr. W. T. Suffolk to give a summary 
of the paper to which allusion had been made. 
Mr. Suffolk then delivered the substance of his paper, illustrating 
his remarks by various drawings which he had prepared. He ex- 
plained that the engravings which had been made for the journal were 
anything but what he should like the Society to possess, as the engraver 
had completely misinterpreted the drawings which he (Mr. Suffolk) 
had made. 
Mr. Suffolk also mentioned the fact that the drawings had been 
executed direct from the microscope, without the aid of camera 
lucida, by means of a small glass disc ruled into squares ; the disc 
fitting into the eye-piece in the usual place of the micrometer ; and 
the paper used being also ruled in squares of suitable dimensions. By 
this contrivance the microscope can be used in its usual position, and 
without fatiguing the eye, as in the case of the camera lucida. Messrs. 
Beck had supplied the ruled plate, the sides of the squares correspond- 
ing with ten degrees of their J ackson's micrometer. 
Mr. Lowne's name having been mentioned in connection with 
certain organs of the proboscis described by Mr. Suffolk, the President 
requested Mr. Lowne to make a few observations on the organs in 
question. Mr. Lowne accordingly explained the structure of the 
fulcrum, the mouth of the fly, and the ligula. He also drew the 
attention of the meeting to an extraordinary valve which was attached 
to the salivary tube of the blow-fly, and which he believed he had 
been the first to describe. His views on the whole subject were 
expressed in a work which he was just about to publish. He would, 
without wishing to depreciate Gleichen's work quoted by Mr. Suffolk, 
express his opinion that it was very far from exhaustive, and many of 
the drawings he considered very incorrect. 
Mr. Suffolk explained that he had adduced the work only as very 
correct for the period at which it was written. 
The President said he would ask Mr. Lowne his opinion with 
respect to the Pseudo-tracheae, which had been described by Mr. 
Suffolk. The examination which he had made many years ago had 
