*41 Conglomerate: Breccia *42 “ Pudding-stone *43 Sand: Quartz °44 “ Magnetite *45 Sandstone: Ferruginous 46 “ Calcareous 47 “ Arkose *48 Quartzite 49 Clay: Boulder °50 “ Fire *51 Shale *52 “ Carbonaceous 53 Slate: Roofing 54 “ Flagstone 55 Porcelainite 56 Tripolite °57 Siliceous Tufa 58 Novaculite °59 Asphaltum °60 Oil Sand *61 Limestone: Fossiliferous *62 “ Coquina *63 “ Chalk 64 “ Crystalline °65 “ Compact 66 “ Hydraulic 67 Calcareous Tufa 68 Dolomite 69 Rock Salt °70 Phosphate Nodule *71 Gneiss: Granitoid *72 “ Micaceous 73 “ Hornblendic °74 Norite: Hypersthenite *75 Schist: Mica 76 “ Hornblende 77 “ Talc 78 “ Chlorite 79 Amphibolite 80 Soapstone 81 Verd Antique (Serpentine) _Igneous Rocks_ *82 Granite: Binary 83 “ Muscovite *84 “ Biotite 85 “ Hornblendic 86 “ Red *87 Syenite 88 “ Elæolite *89 Diorite *90 Diabase: Trap *91 Rhyolite 92 Trachyte *93 Obsidian 94 Pumice °95 Petrosilex *96 Andesite *97 Basalt 98 “ vesicular Lava *99 Melaphyr: Amygdaloidal °100 Volcanic Tuff _Collection No. F1._ Entire list of 100 museum size specimens (3¼ × 4¼), numbered, labelled and mounted on blocks or in improved trays, for museum display and laboratory work $40.00 (The same, labelled but unmounted, $30.00) _Collection No. F2._ Same as above, but small museum size, mounted in improved trays (2½ × 3½) $25.00 _Collection No. F3._ Same as F2, but hand size specimens (2 × 2) 12.50