The normal form of the apparatus is shown in figs.
We have not had an opportunity of testing this, nor Grubb's more recent models; but, should it be found possible to produce such images satisfactorily, without distortion and with an apparatus convenient and rigid in form, such micrometers may possibly supersede the filar micrometer.
A " Geyser " is a very convenient form of apparatus for heating a quantity of water in a short time.
Betsy lined up two likely abductions and she was anxious to get started, Quinn had already performed his part, setting his apparatus appropriately for a rural Iowa location where a twelve year old boy had gone missing.
It takes two of us and an electronic apparatus to create the dream-like trance that lets one of us see episodes from the past.