NOTES — ORIGINAL AND SELECTED. 



137 



pleasure, with tliat of ale-conner within the parish of Nevvland, 

 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 

 l)y 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 botarucal, 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, Pleuronectid.e, 

 should be placed above Hippoglossus. — Page 88, lines 5 and 6, 

 the stones from Grays, presented by Mr. Kennard, were 

 Neolithsj not Eoliths. 



