NOTES—ORIGINAL AND SELECTED. 137
pleasure, with that of ale-conner within the parish of Newland,
parcel of the office of rider.—W. C. Waller, Loughton.
Museum Microscope.—By the courtesy of Messrs.
Watson and Sons we are enabled to give an illustration of the
special form of microscope constructed by them for the museum.
It will be seen that the microscope is enclosed in a glass case to
protect it from dust, the focussing being controlled by an
external milled-head. The slides (12 in number) are arranged
radially on a metal disk, the milled margin of which is accessible
by means of slit-openings in the case, so that the disk can be
revolved to bring each object into position in front of the
objective. The instrument we have at present is provided with
an objective of about an inch focus. All curators have experienced
a desire to exhibit specimens by means of the microscope, but the
difficulty has been to prevent injury to the instruments and the
objects; the museum microscope solves this difficulty. We hope
in time to have several instruments, so that botanical, zoological,
and petrological specimens, sections and other preparations, may
be shown in series in the several departments cf our museum.
Errata.—Ante page 28, the Family heading, Pleuronectidae,
should be placed above Hippoglossus.—Page 88, lines 5 and 6,
the stones from Grays, presented by Mr. Kennard, were
Neoliths, not Eoliths.