FAUNA AND FLORA OF NORFOLK : ROTIFERA. IJ7 
Verrucaria garovaglii, Mnt. (sorediata). 28. On mud walls 
at Thetford, D. T. 1809. Engl. Bot. 
,, incrustans, Nyl. 28. Crevices of old walls, Thet- 
ford, Larb. 
'Strigula babingtonii, Berk. 26. Cocklield on Laurel, Ch. 
Babington and Larb. 
XIV. 
FAUNA AND FLORA OF NORFOLK. 
Rotifera. 
By Rev. R. Freeman. 
Read 28th February, 1905. 
During a very busy year for me, I have had but small oppor- 
tunity to turn my attention to this study. 
But finding an opportunity at last I availed myself of the 
• enterprise and courtesy of Eustace Gurney, Esq., and went 
down to the Norfolk Biological Station at Sutton Broad, on 
November 7th, and stayed there for four days, from the 7th 
to the nth, and for two more days, the 15th and ibth 
November. I took with me a special travelling microscope, 
made by Swift, to pack in an extra small space. The box 
containing it and all accessories will all go into one side of a 
small Gladstone bag. This microscope is binocular, with 
triple nose, fitted with Abbe condensor with spot disc arrange- 
ment, etc., for dark background. 
The object lenses used are 2-inch for searching, i-inch for 
concentration on a special specimen, and 1-inch apochromatic 
for identification of species after isolation. 
My method of working is with the tube of microscope 
and also the stage, tilted at an angle of about 45 0 which 
allows the use of a thin glass tank 3" by 2 " by into which 
the weed and water to be examined is put. Then a binocular 
