First, and firstly are both correct, since first is also an adverb. So you can say:


  I prefer the train because I can see the landscape. Secondly, I have control over my luggage, and thirdly, it is better for the environment.





  First, I prefer the train because I can see the landscape. Second, I have control over my luggage, and third, it is better for the environment.


The important is not mixing them, as in the following sentence:


  First, I prefer the train because I can see the landscape. Secondly, I have control over my luggage.


When enumerating motivations, is it correct to write firstly, secondly, ..., or first, second, ...?
hi there I was wondering if you guys would happen to know the most effective ways to get the kanto starter pokemon because using friend safari seems kind of ineffective and slow.
also how would one obtain fossils aside from the original glittering cave ones thanks
