Type 6 and 7 is mentioned by the author with reluctance as it is of Victorian origin. The little pentagonal base stick type 5 is dainty and well molded but the bell shaped Dolphin is ornate and of less value to collectors. The dishes on Dolphin standards with opalescent edges are of this period also and mentioned only to make this work complete. Type 1. single base 1840 a. Clear white. b. Vaselene yellow slightly cloudy—rare. c. Opalescent. Type 2. single base embossed 1845 a. Clear white ornamented with small Dolphins and shells in relief. Type 3. double base 1850 a. Clear White. b. Opalescent white. c. Opalescent blue top opalescent white Dolphin base. d. Clear blue. e. Clear green very rare. f. Clear purple very rare. g. Vaselene yellow. h. Opaque blue. Type 4. round base 1859 a. Clear white. b. Clear white with heart in tail of Dolphin. Type 5. Pentagon base small stick. a. White. b. Yellow. c. Blue. Type 6. Bell shaped base small Dolphin ornamented with shells. 1860 a. Clear white with opalescent top. b. Blue green with opalescent top. c. Vaselene yellow with opalescent top. Type 7. Milk white opaque glass measurement eight inch small Dolphin on round base with 16 scallops. 1875 Illustration 8 page 68 is a very remarkable clear white Dolphin dish on standard. It measures 9 by 10½ inches. There is a full size Dolphin, early type, with hollow head supporting a balanced shell. The piece is unique. Illustration No. 9 page 70 is so far as the author knows, the only lamp which has been found with a single Dolphin base. It is of clear white glass and is a beautiful piece. A—Lamp supported by three Dolphins—late. Illustration 10 page 68 is one of the later Dolphin dishes referred to at the head of this group. ------------------------------------------------------------------------ [Illustration: PLATE XIX] ------------------------------------------------------------------------ _WHALE OIL LAMPS_ Period of 1850 A burner was invented consisting of two tin tubes soldered to a brass or pewter screw cap. This took the place of the single tube of the earlier lamps and gave a double flame. It was adaptable to use in lamps of ornamental glass and the enterprising Sandwich factory at once started the manufacture of pressed glass lamps to meet the demand.