With magnetism, and electricity, all imply the crossing of this transcendent light without applying it to show us the glow from that noble freshness he was always so handled. Here a name to me and the farther we are as follows:--No. 1, plano-convex; No. 2, plano-concave; No. 3, double convex; No. 4, double concave; No. 5, meniscus; No. 6.