THE MICROSCOPE. 
Contents for Aug,, 1897. 
A Cheap Condensing, Lens: Tilustrated .......0)....s.c05 -sosesc* soncooeen <snves 109 
Preparation of Insects and their Parts. enous Weetedkaasceseacons ile 
Microscopic Work . Saltese Ged To eee Sor ethos Casas eel 
How to Make and ite an Tae vivarion: Pikantrated: Ee asucheexsoane lal 
EDITORIAL. 
Science-Gossip........ ees ee ctetate, cane sene ijsoes cecepicor see ceugesaneect weiskies 117 
PUY CHIM OSIS. sae warene rece sasnertac er ccfadaseeccsyace-ssehclencceacss\asener seniors tase 117 
PRACTICAL SUGGESTIONS. Willson. 
RIM SUNS MOUNUS 2.25255. ccctess dies ttceaheak Cos deatarodeetyaseaaene entre LS 
Wier Small In seChS:. 2 oe cana c-.<cs- aap enpiasemeuiead senealsn dutucnaasab) cr <r or 118 
AMETICAN Vee HOLEIeH) MiaCrOSCOPESaasee seee-<uiel-s) eases" =sesclacmcenenceee 119 
Mounting with Glycerine Jelly. ................s00+ Ssiaiecoiseeneneeteess 119 
SCIENCE-GOSSIP. 
Spores of Vaucheria.. Last eateesiinee st Meise eeeetore ee eS LO 
Sharpening Micfotomie’ vest salbcticesuscdateeneerseeceneeee. ft LeU 
BACK NUMBERS WANTED. 
There are several Libraries and subscribers who h:.ve 
written for back numbers of THE MICROSCOPE which 
are exhausted. For any five of the following, we will 
give a year’s subscription : 
1881, June, Aug., Oct. 1882, Apr., Dec. 1883, Apr., June, Aug. 
1884, Mar., Aug., Sept., Nov. 1885, Mar., May. 1886, Jan., May, June, 
Aug., Sept. 1887, Aug. 1888, Feb., Apr., May, Dec. 1889, Jan. 1890, 
Jan., Feb. June. 1891, Jan,, July, Aug., Nov. 1892, Feb. 
