Vill 
CONTENTS. 
Variations of Magnetic Dip with the Moon’s Declination,.--.-.+-+++-++-+---++» 
Remarks on the Variations of Ranges of Magnetic Dip,.--.--++++++++++++seeee+ 
Diurnal Variations— 
Results from all the Observations for each Month,.---..+-0++-++ssesseseseenenee 
Results from all the Observations, for Groups of Months,-----++++ --++++++++ 
Results from Undisturbed Observations, for Groups of Months,:....-------- 
Effect of Disturbance on the Hourly Means,---+-++++++-+seeeereeeeeeesseeeeeereee 
Variations with reference to the Moon’s Hour-Angle---.-.++++++++++s+seereenes 
Torat Magnetic Force— 
Absolute Value, SEDecPelace ceric Rcksncladctnde ne CUMEEeMMM eRe Uta caascs 60 ccsleneceremtecneas 
Secular Change, De ccloselapeacebenewanslenisincineeme ns ieeen nannies sivssc che es a c- ssenmuuscuicuniehic 
Effect of Disturbance on the Yearly Mean Valuie,.--.-.++-+--1++sesereeseeeneeees 
Annual Period,- Giecedovedvepaseescacunevenaccmmenementaaanicrs ces cccccescacdsionnccertent 
Effect of Disturbance on the Monthly Means,--+.-+++-+s++sessseeesenerseeee scenes 
Annual Variation of Ranges of Monthly Mean Diurnal Variation,.-----... 
Variations with Reference to the Moon’s Age,------+-++-+1+ssssesteseeseneesenens 
Variations with reference to the Moon’s Declination,-.--.++--+-++++++s+++++e0000 
Remark on the Variations of Ranges of Total Force,...------++++++-+-seseeeeee 
Diurnal Variations— 
Results from all the Observations, for each Month,----+--+++-++++++0eseeeesee eee 
Results from all the Observations, for Groups of Months,.-.---.-.+-.+++-++++- 
Results from Undisturbed Observations, for Groups of Months,--.-------.-. 
Effect of Disturbance on the Hourly Means,..+++++++++++seseseseeeveevecerseeeeee 
Variations with reference to the Moon’s Hour-Angle,--+---++---+++++eeeeeeee eee 
Comsrnep Motions oF THE Macnetic NEEDLE— 
Process of Projection and General Remarks «-+----+++++++-++serrseeneeeesenene ees 
Annual Motions,--+---+-++-+++ 
Monthly Motions, 
Similarity of the Motions for the Positions of the Sun and Moon in De- 
CLINAGION «oe scnsncnadncsccnpysccevaccwosbeotyyirersvecsevccesacececcsseaness Bencasees 
Diurnal Motions, Rae a ct ae a ate coe eee EE ESRI eta Toetalaene'cisscciows.cnuwanensultsennementcts 
Foot-note on the Determination of the Epochs of Maximum and Minimum, 
Perimeters of the Figures of the Diurnal Motions for each Month,.--------- 
Perimeters of the Figures for Disturbed and Undisturbed Observations,--- 
Mean Angular Motions from Hour to Hour,--+:++++-+2+0++02s2seteeeeeetecs eee ees 
Diurnal Variation of Velccity of Diurnal Motion ‘and Relation to that of 
Disturbance, --+--+-ce-esceeeesececesreeeceecertereeeentec nee snecccsceaeeeeeeea sete: 
Variations in the Velocity of Motion not related to Variations of Tem- 
perature of the Air,s:.::-::seccsseeeeuee consecceensecereeeenerseeseceeneeses cee ees 
Relation of Points of Greatest and Least Velocity to the Astronomical 
Meridian,-------ssec-seeeececereeencesecescsaeasersceeenceetaesessuseussansscsassusees 
