Monthly Microscopical"] 
Journal, Feb. 1, 1869. J 
NOTES AND MEMORANDA. 
131 
Eoss' Microscopic Vice. — Mr. Eoss requests us to correct an error 
made by one of his assistants in the lettering of the figure illustrating 
his microscopic vice in our last number. At page 68, the letter C in 
the diagram is misplaced, and should hold the position it does in the 
adjacent cut. 
Woodward's Heliostat. — Mr. T. Higgins, of Liverpool, sends us 
the following note : — " Some of the readers of ' The Monthly Micro- 
scopical Journal ' will, I have no doubt, be glad to know where they 
can obtain Heliostats of Dr. Woodward's form, as given in your 
last issue. Dr. Woodward kindly sent me a drawing and description 
last summer, which I put into the hands of Messrs. Abraham & Co. 
here, and they have made some excellent instruments. I have one 
which works to my entire satisfaction." 
Tlie Professorship of Botany in Trinity CoUeg^e, Bublin.— Our 
readers will be glad to learn that the chair which Dr. Harvey held 
for so many years, and which was till recently occupied by Dr. Dickson, 
has been given to Dr. Edward Perceval Wright, late lecturer on 
Zoology in Trinity College. No more worthy candidate could have 
been selected for the post. Dr. Wright is not only an accomplished 
naturalist in the widest sense of the word, but to an appreciation 
of the general philosophy of Biology, he adds a wide experience 
in botanical and physiological research, an acquaintance with the 
Flora of his own country (the result of many years' investigation), 
and a power of expressing his opinions which must make him 
highly popular as a lecturer. Dr. Wright was one of the founders of 
the old 'Natural History Beview,' which was originally a Dublin 
journal. He was one of the most active members of the Natural 
History Society of Dublin, as he is now one of the most industrious 
supporters of the Dublin Microscopical Club. He is also one of the 
editors of the ' Journal of Anatomy and Physiology,' and has charge 
of nearly all the Invertebrate departments in 'The Zoological Eecord.' 
It is unnecessary to refer to his numerous contributions to scientific 
literature, as microscopists are thoroughly familiar with them, and 
they are to be found in the different journals devoted to natural 
science. We congratulate the University of Dublin on the wise 
discrimination it has exercised in selecting Dr. Wright for the vacant 
of&ce. 
Dr. Maddox's Paper in our last Number. — As we omitted to give 
the original diameters of the figures in Plate I., illustrating Dr. Maddox's 
paper in our last number, we may state that several of the drawings 
and photographs were very considerably reduced by the engraver. We 
call attention to this now, as some of the points of interest could not 
be seen correctly were the objects viewed at the amplifications appended 
in the plate, and as the original drawings and photographs were of great 
size and very beautiful. 
