760 PROCEEDINGS OF THE SOCIETY. 



The Chairman said tbey had before them a very interesting exhibit 

 prepared by Dr. Hebb, who under a large number of Microscopes showed 

 a series of preparations representing a day's work in the Clinical Labora- 

 tory of a London General Hospital. The variety of subjects was very 

 great, including blood specimens, bacteriological specimens, and histo- 

 logical specimens of the products of numerous diseases, and he thought 

 their thanks were specially due to Dr. Hebb for the trouble he had 

 taken in getting together such an interesting collection. 



Mr. Beck hoped that Dr. Hebb would say a few words with reference 

 to his exhibit, which he was sure would add greatly to its interest. 



Dr. Hebb said that he had called his exhibits a sample of a day's 

 work in a clinical laboratory. Though the specimens exhibited had 

 been made at different times, it would be quite possible that all of them 

 might have been sent up and examined in a single day. He said this 

 to indicate some of the work that goes on daily ; this, however, was far 

 from representing the sum total of laboratory work, for it did not include 

 the still more numerous chemical and physico-chemical examinations. 

 He w^as afraid that this evening's show was not sufficiently interesting 

 to the lay Fellows, and certainly it was far below what the Society was 

 accustomed to, and did not attempt to rival the beautiful exhibitions 

 given by Messrs. Hilton, Earland, Rousselet, and many others. The 

 assembly had been good enough to applaud his endeavour, and he hoped 

 that they would include in their thanks his assistant, Mr. Chopping, who 

 was present, and had spent much time in arranging the preparations 



IS. 



Mr. H. Taverner exhibited a number of Stereo-Photomicrographs, 

 such as he had described on a former occasion as being taken with a 

 stop placed behind the objective (this Journal, 1906, pp. 260-2). Those 

 now shown were water mites in natural colours, and were taken by the 

 Sanger-Shepherd three-colour process illuminated with a Nernst lamp. 



Mr. Rousselet exhibited a pair of cutting forceps made by Mr. Curties, 

 and also a pair of forceps-scissors made by Mr. Traviss, which he thought 

 would supply a long-felt want. Everyone who studied pond life must 

 frequently have had occasion to cut off under water a small piece of 

 weed upon which some particular organism was attached, the result 

 usually being that the piece when cut fell to the bottom of the tank, 

 where it was always difficult to pick up and sometimes impossible to 

 find, so that something was wanted which would not only cut, but 

 would hold it fast when cut. He had mentioned this want years ago 

 to various persons, but no one seemed to have taken it up, and it was 

 only within the last week that he had received from Mr. Curties this 

 pair of cutting forceps designed for the purpose, and also from Mr. 

 Traviss the pair of scissors which did the same thing in a very simple 

 md ingenious way. Both these contrivances answered the purpose 

 exceedingly well, and the smallest particle of weed cut off was securely 

 held untif purposely released. Forceps and scissors should have long 

 stems, 6-6i in. total length, in order to be able to reach the bottom of 

 a micro-tank. 



