PROCEEDINGS OF SOCIETIES. 251 



a space of less than ^ inch square. — Mr. B. H. Babbage : Monocular 

 microscope, with Collins' objectives. Crystals of salt ; sulphates of 

 iron, nickel, cobalt, copper, zinc, potash, and magnesia ; acetate, 

 nitrate, and superoxalate of potash ; iodide of potassium : borate and 

 muriate of soda ; muriate of ammonia ; alum ; sugar ; citric, tartaric, 

 and oxalic acids. — Mr. Mais : Collins' A 1 Harley binocular, with 

 circular goniometer stage, revolving sub-stage, with centering adjust- 

 ments ; immersion lens, j\ inch ; Webster's achromatic condenser ; 

 Brown's iris diaphragm ; Abraham's achromatic prism ; Maltwood'a 

 finder ; Barker's revolving selenites ; Jackson's micrometer eye-piece ; 

 and other fittings. In Blackwood cabinet of colonial manufacture. 

 Fiddian's lamp; Home and Thornthwaite's mounting table. Polarizing 

 objects ; salts of quinine ; starch from Calabar beau ; embryo oysters ; 

 human skin ; plaited horsehair ; gun-cotton muslin ; mummy cloth ; 

 whisker of lioness ; palates of whelk, limpet, snail, chiton, and ear- 

 shell ; gizzard of cricket. Moller's Diatomaceen Typen- Platte, No. 2 ; 

 elaborate groups of diatoms, transparent and opaque.— Mr. G. Frauds : 

 Smith and Beck's educational ; Browning's spectroscope ; micro-spec- 

 troscope ; direct-vision spectroscope. Tubes of fluids, showing ab- 

 sorption bands — didymium ; uranium ; cobalt ; blood ; chlorophyll ; 

 aniline dyes ; cineraria ; indigo ; bile pigment ; fish pigment. Metals 

 in combustion, showing bright lines — potassium ; sodium ; lithium ; 

 thallium ; barium ; strontian ; calcium ; indium ; caesium ; rubidium. 

 Absorption bands of selenite under polarized light. — Mr. J. E. 

 Gurner : Powell and Lealand's monocular ; Hartnack and Ober- 

 hauser's monocular. Insects and insect structures found on the 

 Eucalyptus. — Mr. J. G. Young : Harley's binocular, by Collins, with 

 sliding objectives. Botanical specimens : cuticle of wheat, oats, &c. ; 

 spiral vessels ; raphides ; hairs of leaves ; leaf of sphagnum ; seed of 

 Paulownia imperialis ; seaweed. — Mr. C. W. Babbage: Smith, Beck, 

 and Beck's binocular. Wings of butterflies ; hairs of elephant, 

 mouse, rat, human hair ; feathers of humming-bird, goldfinch ; wing- 

 cases of diamond beetles ; skin of sole ; scales of eel, sole. — Mr. Calf : 

 Beck's popular binocular, with Webster's condenser and Collins' 

 parabolic reflector. Insect preparations : proboscis of butterfly, 

 drone-fly, and blow-fly ; antennte of moth and blow-fly; foot of tabanus, 

 blow fly, and spider ; wing of house-fly, mosquito, and lace-wing fly ; 

 epidermis of beetle ; oar of water-boatman. — Mr. Holmes : Crouch's 

 student's histological monocular, with glass revolving stage. Poly- 

 cystina ; foraminifera ; micro-photographs ; sections of sugar-cane, 

 gutta-percha, birch, lemon, Monstera deliciosa ; sori of ferns ; leaves ; 

 pollen ; young oysters in situ. — Mr. Smeaton : Smith and Beck's 

 popular binocular. Diatoms from ' Challenger ' ; parasites of native 

 companion, canary, pheasant, bat, horse, pig ; South Australian 

 polyzoa, as opaque objects and by polarized light ; blood-disks from 

 mammals, reptiles, and fish; wings of South Australian butterflies 

 and moths. 



