[Delmobile]

I will try to help you. I am a native speaker and a writer, but not a teacher.

I wish to apply for an internship with your company for the period March to August of 2008.

Next paragraph: fine except you need another comma after Germany. "Landshausen, Germany, specializing in..."

Next paragraph: fine. And you don't really need to start a new paragraph before "For these reasons, I am convinced that I could be of service to your company. As your company conducts research and development in this field, [add comma here] I am sure that I could also learn a lot that would be beneficial both for my further education and a possible future employer.

I would like to be able to complete an internship in the United States for several reasons: [note added colon] the greatest of these is a wish to improve my knowledge of the English language and to learn more about America, its people,history and customs.

I look forward to hearing from you in the near future and thank you in advance for your time and consideration.

Yours sincerely, [lower case on second word in closing]

I've noted a couple of punctuation changes in brackets for fear you might miss them. "I remain, Sir," (with or without "yr. obedient servant" after it) makes me feel all romantic and ready to hire you immediately, but I am afraid that it is extremely old-fashioned. So you probably should skip it. On the other hand, it might make you stand out from the crowd and appear exotic and carefully educated. What do other members think? And do other members think that colon in the penultimate paragraph is the right thing to use?

Best wishes,

Del