373 



NOTE. 



New Application of the X-rays : Miero-radiography . 

 By Pierre Goby.* 



Plates XVI and XVII 



be varied as wanted Thp fc^^^ nf fi.^. i a ^^.^«^^^ °^ winch can 



leaden diaDhramTi /nf\ ^lustei ot active rays, which the thick 

 rlitv . "^^^^^^^^Y" ^ ^^ "^^^^ ^^^^^ diameter allows to pass whilst a 



/ tne opeiatoi, when the apparatus is put in a horizontal 

 Aug. ooi^'mT """'"• "'"■ "''" ""• '''-" '' '«'-^' 



