MacDonald, A.
MacGillicuddy
Mackenzie, J.N. 
MacLean
MacMurchy
Maeder
Malins
Malling-Hansen
Man, E.H. 
Mandeville
Mannhardt
Mantegazza
Marchi, Attilio de
Marcuse, J.
Mariani
Marie, A.
Marie, P.
Marro
Marsh
Marshall, F.
Marston
Martial
Martineau
Mason, Otis
Matignon
Maudsley
Mayr, G.
Melinaud
Menjago
Mercier
Metchnikoff
Meteyard
Meyners, d’Estrez
Michelet
Miklucho-Macleay
Minovici
Mirabeau
Mitchell, H.W. 
Mitford
Modigliani
Moliere
Moll
Mondiere
Mongeri
Montague, Lady M.W. 
Montaigne
Montmorand
Moraglia
Morris, R.T. 
Morselli
Mortimer, G.
Moryson, Fynes
Moses, Julius
Mueller, R.
Murisier

Naecke
Nansen
Negrier
Nelson, J.
Neugebauer
Niceforo
Nicolas of Cusa
Niebuhr, C.
Nietzsche
Nipho
Norman, Conolly
Northcote, H.

Oettinger
Ogle
Oldfield
Oliver
Omer, Haleby
Oribasius
Osier
Ossendovsky
Osterloh
Ostwald, Hans
Ott, von
Overbury, Sir T.
Ovid

Paget, Sir J.
Paget, John
Pare, A.
Parent-Duchatelet
Parke, T.H. 
Partridge
Passek
Paulus, AEgineta
Pausanias
Pearson, K.
Pechuel-Loesche
Peckham
Penta
Pepys, S.
Perez
Perry-Coste
Peschel
Peyer, A.
Peyer, J.
Pick
Pierracini
Pilcz
Pitcairn
Pitres
Plant
Plato
Plazzon
Pliny the Elder
Ploss
Plutarch
Pouchet
Pouillet
Poulet
Power
Prat
Priestley, Sir W.
Procopius
Pyle

Quetelet
Quiros, Bernaldo de

Rabelais
Raciborski
Raffalovich
Ramsay, Sir W.M. 
Rasmussen
Ratzel
Rauber
Raymond
Regis
Reinach, S.
Reinl
Rengger
Renooz, Mine.  Celine
Renouvier
Restif de la Bretonne
Reuss
Reverdin
Reys
Rhys, Sir J.
Ribbing
Ribot
Richelet
Richer
Richet
Riedel
Ries
Riolan
Ritter
Rochholz
Rohe
Rohleder
Roland, Mme.
Rolfincius
Roemer, L.S.A.M. von
Roos, J. de
Rosenbach
Rosenstadt
Rosenthal
Rosner
Rosse, Irving
Roth, H. Ling
Roth, W.
Roubaud
Rousseau
Routh, A.
Rudeck
Rush

Sade, De
St. Andre
St. Hilaire, J.G. 
St. Paul, Dr.
Salerni
Sanchez, T.
Sanctis, Sante de
Sanctorius
Savage
Savill
Schemer
Schmid-Monnard
Schrenck-Notzing
Schroeder, T.
Schroeder, van der Kolk
Schuele
Schultz, Alwyn
Schulz
Schurig
Schurtz
Schuyten
Schwartz
Schweinfurth
Scott, Colin
Seerley
Selden
Seler
Selous, E.
Semon
Semper
Senancour
Serieux
Sergi
Shakespeare
Shaw, Capel
Shufeldt, R.W. 
Shuttleworth
Siebert
Sieroshevski