526 Proceedings of the Boycd Fhysical Bocieiy. 



The sink and draining apparatus in this room may be 

 taken as a type of those throughout the whole building. It 

 consists of a large earthenware sink, on one side of which 

 is a grooved draining board covered with lead, the grooves 

 all leading to the sink. A swan-neck tap supplies the 

 water. To this tap are two nozzles, to one of which is 

 wired a piece of india-rubber tubing, used to connect the 

 Geissler exhaust pump, etc. ; the other nozzle gives a steady 

 unbroken jet of water f in. in diameter. 



The wall behind the sink is leaded for about three feet 

 up; against this are fixed a couple of shelves, the upper 

 one perforated for draining flasks and bottles, the lower 

 one grooved and with a gentle slope to carry all droppings 

 to the sink. Below these shelves are a couple of rows of 

 wooden pegs, fixed into the wall at an angle of 45°. These 

 are very useful for draining all kinds of glass apparatus. 



In the main building in the lower flat is a large entrance 

 lobby (Fig. 6), to the left of which is a part of the Laboratory 



28 rr 



] 



STOHES 



WORKSHOP 



■^— VJ 



ENTRANCE 



GROUND FLOOR 



Fis. 6. 



Assistant's quarters. At the back, with an outlook into 

 the court and on to the experimental department, is a large 

 room which has been fitted up with a bench and tools for 

 carpentering, metal and wire working. In this room is also 

 a large Hamilton-Bruce Microtome, with which sections of 

 whole organs are made. For the sake of convenience and 

 rapidity of working, I have added to this microtome a 

 second metal plate which may be screwed to the fixed 



