144 



RECORD OF CURRENT RESEARCHES RELATING . TO 



We are also pleased to welcome the ' Quarterly Journal of the 

 Microscopical Society of Victoria ' (of which Society Mr. T. S. 

 Ealph, A.L.S., is the President). The contents of the first number 

 were noticed in our last Bibliography, and included papers on new 

 species of Polyzoa by Messrs. Maplestone and Goldstein, and by the 

 Rev, J. E. Tenison- Woods on the Eadula of Australian Mollusca. 



Klonne and Miiller's Demonstration Microscope. — This instru- 

 ment is represented in Fig. 9. Its speciality consists in the addition 

 of a circular stage revolving round the pillar of the Microscope as a 

 centre, and arranged so that eight objects can be examined. 



This contrivance does not aj^pear to us to be by any means so con- 



FiG. 9. 



venient as that of the late Mr. Lobb, who constructed a revolving 

 stage nearly identical with that shown in the figure, not, however, 

 attached to the Microscope, but on a separate stand, so that it could 

 be brought into operation at any time, and when not required, the 

 Microscope was available for use in the ordinary way. 



Microscope with revolving Object-holder.— This instrument, 

 for showing transparent objects, which was exhibited at the December 

 meeting (from Mr. Crisp's collection), is a modification of the Hett 

 Microscope, described by Professor Quekett,* the latter being, however, 

 available for opaque objects only. 



It consists of an inclined frame A, supported by an upright and 

 base-piece B, C, as shown in Fig. 10. The frame carries a brass 



* 'A Practical Treatise on the Use of the Microscope,' Srd ed., 1855, p. 538. 



