tensivelv exercised directly afterward. On To continue trying to manipulate the mercury 



board ship this can be done by using the ther- in such an instrument is useless since after a 



mometer at every opportunity on a triple frame certain time its performance will never agam 



Nansen bottle until its proper functioning is be reliable. Without exercise and observation 



verified If during this time the malfunction is this conclusion can not be made and when a 



definitely recurrent, it is a good indication that number of thermometers m this condition are 



progressive mercurial deterioration is taking counted as part of a complement selected tor 



place or glass sizing from age is deforming field survey purposes, success of the planned 



critical sections of the capillary or appendix. operation is often limited or crippled. 



G-4 



