I think that last in third column is Etrich Taube (or one of it's copies).
I also believe that 1st in 3rd column is rather Morane H, and to me it's the 3/3 that looks more like Nieuport IV.
2/4 (plane/column) is Morane L Parasol. 1/4 could perhaps be Morane N, but wouldn't bet on it.
5th column - Nieuport twenty-something, SPAD, ??, Avro 504
6th column - Bristol Fighter, next two look Italian to me - check Pomillio or something like that.
Plane in top row between BrisFit and flying boat looks like Morane 29/30. Red hydroplane rather isn't D.VII, but could be Fokker.
Last in 8th and first and second in 9th column may be Dewoitine 21 and some relative of it (but don't ask me which is which).
Below them are two Junkers F-13, just with different tail arrangements (they had lots of them during their long and diverse service life - just check two first pages of Polish Wings).
From that point many of these aircraft are domestic Argentine designs, often look-alikes of European or US designs or their licence-models.
Biplane to the right of bottom Ju.F-13 is Avro 621/626.
To the right of B-10 is Lockheed L-10 Electra and above it L-12 Electra Junior.
Of the rest I'll try to think tomorrow maybe.
Thanks Es! I've identified most of the planes, but however, it isn't the pomilio, i've looked and the manufacturer pomilio didn't manufacture any airplane for Argentina.