Specimen Observations on the Galilee 



41 



Form 11a, below, reproduces specimen total-intensity observations with sea dip-circle 

 189 by the loaded-dip method, made on the headings NE and N, during the starboard- helm 

 swing in San Francisco Bay on May 25, 1908. It will be noted that the loaded needle 

 No. 4 was used, with weight 11, which was inserted in the south end of the needle. As in 

 the case of Form 12a, the headings of columns will suffice to explain the method of obser- 

 vation, the needle readings again being recorded to the nearest half or quarter degree, or 

 occasionally to nearest tenth degree. 



Magnetic Observations on Svnng: Total Intensity (F) 



(Form 11a) 



Station: San Francisco Bay Chronometer H. W. Ohs'r- PHD 



Dale: May 25, 1908, A. M. Needle: No. 4 loaded; weight 11 Rec'd'r: G. P 



Dip Circle: No. 189 



End of needle marked A north down. Ship's Head NE. 



Circle East 



Needle Face East 



223.0 

 24.5 

 23.5 

 24.5 



223,9 



N 



43.5 

 44.5 

 43.5 

 45.0 



44.1 



Circle West 



Needle Face West 



316.0 

 17.0 

 16.0 

 17.5 



316.6 



N 



136.0 

 37.0 

 35.5 

 38.0 



136.6 



Circle West 



Needle Face East 



316.0 

 17.5 

 16.0 

 17.5 



316.8 



N 



136.0 

 7.0 

 6.0 

 7.0 



136.5 



Circle East 



Needle Face West 



222.5 

 25.0 

 23.0 

 24.5 



223.8 



N 



43.0 

 44.5 

 43.0 

 44.5 



43.8 



+44?00 I +43?40 +43?35 +43?80 



+43^70 -h43?58 



Mean /'; +43?64 



End of needle marked A north down. Ship's Head: N. 



Circle East 



Needle Face West 



223.0 

 24.5 

 23.0 

 24.0 



223.6 



N 



43.5 

 44.0 

 43.0 

 44.5 



43.8 



Circle West 



Needle Face East 



317.0 

 18.0 

 16.0 

 17.0 



317.0 



N 



136.0 

 38.0 

 35.5 

 38.0 



136.9 



Circle West 



Needle Face West 



316.0 

 17.0 

 16.5 

 18.0 



316.9 



N 



135.0 

 37.5 

 35.0 

 38.0 



136.4 



Circle East 



Needle Face East 



223.0 

 24.5 

 22.5 

 24.5 



223.6 



N 



43.0 



44.5 

 43.0 

 45.0 



43.9 



+43?70 I +43?05 +43?35 -|-43?75 



+43 '.38 +43?55 



Mean/': +43?47 



Ship's Head 



NE 



N 



Remarks 



Chron. time and temp., beginning 

 Chron. time and temp., ending 



Mean chron.time and mean temp, 

 Chron. coit. on L. M, T. 



Local mean time 



Mag'c mer. for circle east reads 



h m 



3 01 



04 



3 02 

 +3 53 



6 55 

 134° 15' 



C 

 16?5 

 15.7 



h m 



3 08 



14 



16,1 



3 11 



+3 53 



7 04 

 179° 15' 



C 

 15?0 

 17.0 



16,0 



Helm 



Weather 



Sea 



Wind 



Roll 



Stb'd 



b 



S 







0° 



