Page 2. —2-1. hat man ..., conditional inversion = wenn man ... hat.
2-2. nichts = kein Geld.
2-3. so (here = dann) wird, then the order will be or the order is given:
2-4. die Gassen, in welchen es noch etwas zu zahlen gab, the streets where they owed money —the idea being: On their way to the railroad-station, the three students wisely evaded such streets where they owed money, fearing that, being seen there, by the heart-rending entreaties of their creditors they might be induced to spend part or all of their travelling money in settling old debts.
2-5. Nr. stands for Nummer.
2-6. Bä´deker (Karl) of Leipzig, and Murray (John) of London, well-known editors and publishers, the first named of a German and the other of an English set of guide-books, both uniformly bound in red cloth.
2-7. daran´, refers back to the contents of the preceding sentence, from doing so.
2-8. das (der) Barome´ter, note the accent.
2-9. The question „Wie viel Uhr hat es geschlagen?“ ( "What time is it?" ) humorously used for „Wie steht es mit dem Wetter?“ or „Wie sieht es mit dem Wetter aus?“ ( "What are the weather-prospects?" )
2-10. geschlagen. Note the omission of the auxiliary verb in „dependent“ clauses.