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Mr Newton Our former aquentance Imboldeneth me to troble you wthwith these few lines: wchwhich is to Intreat your faworfaivor If ytthat an oppertunity will serve: To peruse over this Small Table of the Suns Azimuth for the Latitude of wchwhich is for Every Hour of the day & night: being from the Equinoctiall to degrees of declination being Eather North or South for Every 4th degree of declination: the Azimuth Being from the East or west Eather North wards Or South wards. And Likwise this Table of the North Stars Azimuth which is shewed from the North for Every hour Eather above or belowe the pole wchwhich is for Every 10th degree of Latitude from the Equinoctiall to of Latitude: which I would intreate your favour to Examine & give me notice thereof whether the proportions hold good or not: vizd whether these Tables Shew the Sun or North Stars True Azimuth as I have heare shewed by these tables or not. As for this way of Azimuth it is by a way of my owne contriveing by such a way as I never see nor heard of before wchwhich maketh me moore desirus to have your oppinion thereof: As for this way of callculation I do not at all conserne my selfe wthwith allthe Altitude onley wthwith the Declination: so ytthat the Azimuth for Every Hour is found as soone or sooner or sooner then the Hourly AltituAltitude wchwhich is by such a duble way of workeing for yethe Hour of l0 & 2 for North Declination & 10 & 2 for South Declination & the Hour of both 6essixes is wrought by the product of one Multiplication wchwhich is to be Added to or Subtracted from a Nother Summ & then takeing thereof sheweth 6 Hours Azimuth: So ytthat the whole 24 hours Azimuth is wrought pper the produce of five multiplications by being Added or substracted from An orther given summ wchwhich is Allwayes a certane Summ for ytthat hour & Lat'Latitude to any declinatdeclination. I have heare in some places not onely sett downe the degrees & minutes but have shewed by pricks to a quarter of a minute in some places. But if I would have bene presise in this Calculation pper this way of callculating of yethe North Stars Azimuth I could have sett downe not onley the minute But likewise ytthat to one thousand part of a minute & ytthat by yethe same Radius by wchwhich this was Calculated. But this I Suppose is neare enough if ytthat yethe proportions hold good wchwhich I would desire you to Examine & give me notice thereof wchwhich if it be within 14 dayes After the dait of this I may Receive it If ytthat you direct your Letter to Mr William Kings Junior Silkeweaver In three horshoo alley in Old Streete in London I shall Receve it: Haveing no moore at prsentpresent But my dutye to my unckle & my service to your selfe hopeing that you ar both well as praised be god I am I Remane
A your Command to serve you Arthur Storer
London Sept 4th: 1678
I sent you a former table by unckle Babington of yethe North Stars Hourly Altitude & Azimuth But in ytthat yofthereof table of the Suns Azimuth was Omitted wchwhich I hope you have Receved before this.
For his much Esteemed Frend Mr Isaac Newton of Trenity Colidg in Cambridg: prs
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