navigational discovery longitude

http://www.nawcc.org/museum/nwcm/galleries/marine/marine.htm

http://en.wikipedia.org/wiki/Marine_chronometer

http://en.wikipedia.org/wiki/Chip_log

Carry on Mr. Bowditch: mapping the course

http://www.commonsensepress.com/sample_book_studies_pdfs/tan_tbook_study_sample.pdf

1st voyage: Isle of Bourbon also known as Reunion

http://www.escapeartist.com/efam31/reunion.html

2nd voyage: Cadiz, Spain

http://maps.google.com/maps?client=safari&rls=en&q=Cadiz&oe=UTF-8&um=1&ie=UTF-8&hq=&hnear=Cadiz,+Spain&gl=us&ei=u1zDTI3nLoWClAfvpcQD&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CCAQ8gEwAA

Alicante, Spain

http://maps.google.com/maps?client=safari&rls=en&q=Alicante&oe=UTF-8&um=1&ie=UTF-8&hq=&hnear=Alicante,+Spain&gl=us&ei=DF3DTO7MEsT_lgeo-4wD&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CCsQ8gEwAA

3rd voyage: Batavia (today known as Djakarta, Indonesia) to buy coffee

http://maps.google.com/maps?client=safari&rls=en&q=djakarta&oe=UTF-8&um=1&ie=UTF-8&hq=&hnear=Jakarta+Capital+Region,+Indonesia&gl=us&ei=v13DTPPTC8OclgeqkvgC&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CBkQ8gEwAA

They found no coffee so they travelled on to Manila in the Philippines:

http://maps.google.com/maps?client=safari&rls=en&q=Manila&oe=UTF-8&um=1&ie=UTF-8&hq=&hnear=Manila,+Philippines&gl=us&ei=S17DTPKJCcPflgeh-ZQI&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CCUQ8gEwAA

this was done in the middle of monsoon season, which was amazing.

monsoon- "Monsoon is traditionally defined as a seasonal reversing wind accompanied by seasonal changes inprecipitation,^[1] "

Visit sailgroove.org for more Videos

Carry on, Mr. Bowditch

http://www.waterencyclopedia.com/Mi-Oc/Navigation-at-Sea-History-of.html

a sextant

http://www.clipperlight.com/howusesextant.html

http://en.wikipedia.org/wiki/Nathaniel_Bowditch