169 
With six objectives (two imperfect) and other accessories in a flat 
mahogany case. Date probably between 1800 and 1810. 
15. John Cuff’s Microscope, made by George Sterrop. A 
closer copy of the original model as figured and described by 
aker than is No. 6 of this collection. Has fine adjustment as 
well as rapid movement of body. With four objectives and 
other accessories in mahogany, pyramidal case, with drawer in 
base of stand. Date about 1750. 
No. 16. Jones Model — maker unknown. Substantially like 
the ‘‘ Most Improved”’ (No. 13 of this collection), though some- 
what larger, With nine objectives (two imperfect) and other 
accessories in a flat mahogany case. Date probably about 1800. 
No. 17. Amici’s Horizontal Microscope, with elaborate me- 
chanical stage, five objectives and numerous accessories, in flat 
mahogany case. Date about 1826. 
18. Screw-barrel microscope of the Wilson-Adams pattern, 
without handle or support. Date about 1745. 
No. 19. Pocket Microscope, of the screw-barrel form, probably 
of German make. With three eee and other accessories 
in upright leather case. Date about 1 
No, 20. ‘‘ The New Universal Single Microscope” of George 
Adams. With six objectives and a silvered speculum, but no 
other accessories or case. Date about 7 
. T. MacDoueat, 
ON THE NUTRITIVE VALUE AND SOME OF THE 
ECONOMIC USES OF THE COCOANUT. 
Few if any vegetable products furnish so many useful articles 
as the cocoanut. It forms the chief food of the inhabitants of 
most tropical coasts and islands, where the kernel is not only 
all over the globe. The milk is considered an agreeable cool- 
ing beverage in the tropics, although it is diuretic in its effect, 
and causes irritation of the mucous membrane of the bladder and 
