During his time as a student, Bartel became actively involved in politics. However, he also showed great academic abilities and, in 1907, he graduated from Lwów Polytechnic with distinction. Following his graduation, he was appointed as an assistant in descriptive geometry to Placyd Zdzisław Dziwinski (1851-1936), the professor of geometry, at Lwów Polytechnic, but he also enrolled as a student at the University of Lwów. He was awarded a travel grant which allowed him to spend some time at the Ludwig-Maximilians University of Munich attending lectures there. In particular, he attended mathematics lectures by Aurel Edmund Voss (1845-1931) and Alfred Pringsheim. His interests were, however, broader than mathematics, and he took a course on the history of art given by Karl Dochlemann, the author of Projective geometry (1898) :-
Dochlemann impressed him greatly and imbued him with an aesthetic interest in art and with a desire to understand works of art in a precise, mathematical manner.Bartel was awarded his doctorate in 1911 and, three years later, he was made a professor at the Lwów Polytechnic. Of course, this was a period of conflict across much of Europe and it began with an Austrian declaration of war on Serbia on 28 July 1914. Russia supported Serbia, mobilising its army on 30 July, and Germany then declared war on Russia on 1 August, and two days later on France as well. Bartel was conscripted into the Austro-Hungarian army for the duration of World War I. For Bartel, as for many Poles, the war was seen as a positive step which could lead to Poland regaining its sovereignty.
After the war ended with the surrender of the Central Powers, Poland proclaimed itself independent on 11 November 1918. Bartel returned to his professorship at Lwów Polytechnic and in fact his book Descriptive geometry (Polish) was published around this time. We will say more about this text later in this biography but for the moment let us continue to describe the dramatic events which took place in Poland in general, and Lwów in particular. The first of these was a short-lived western Ukrainian republic which arose in Lviv (to give it its Ukrainian name) in late 1918. The Poles, however, drove Ukrainian troops out of the city and regained control. Bartel took a very active part in this defence of Lwów, commanding the railway troops in their battles with the Ukrainian army.
At this stage Poland was an independent state by its declaration of 1918, but its borders had not been agreed. In 1919 Bartel gave up his professorship of mathematics at Lwów Polytechnic to assist in reforming Poland with a democratic constitution. He served as Minister of Railways from 1919 until 1922. A move was made towards settling the Polish borders with the Treaty of Versailles in 1919, but Poland attempted to recover its 1772 borders by military action in the Lithuanian Vilnius territory. As Polish troops advanced on Kiev in March 1920 there was a Soviet response which began the Polish-Soviet war. This ended with the Treaty of Riga on 18 March 1921 following a rather remarkable Polish victory in the Battle of Warsaw (known as the "Miracle on the Vistula"). The boundaries of the Polish state were then set.
Bartel became a member of Poland's Sejm, its parliament, in 1922. Jozef Pilsudski, who had been head of the military department of the Polish council of state during World War I, had initially been in control of Poland at the end of hostilities and had arranged for the German troops to leave the country. He had then taken a back seat while the Polish government began its task of running an independent Poland. However, by 1926 Poland was suffering an economic depression and Pilsudski became disillusioned with the way that the system of government was working. On 12 May 1926, at the head of a few regiments, he marched on Warsaw and took control in a military coup. Two days later the whole Polish government resigned and the Polish parliament elected Pilsudski as President. However, he refused this role and one of his friends, Ignacy Moscicki, was elected President. Pilsudski became Minister of Defence and Bartel was made Prime Minister of Poland.
From 1926 until 1930, Bartel was Prime Minister of Poland on five separate occasions. Two of these lasted only a few days while the other three were: 15 May 1926 - 30 September 1926; 27 June 1928 - 14 April 1929; and 29 December 1929 - 17 March 1930. He carried out his duties as Prime Minister despite severe heath difficulties; he had kidney problems and suffered almost constant pain. However, he was a cheerful and pleasant man who was liked by both his political friends and enemies. As a politician he was ideologically centrist and, when he became Prime Minister in May 1926, he made a speech calling:-
... for calm, hard work and dedication to the country. At the same time he promised to remove incompetent and corrupt people from positions of public and political life.An interesting indication of the way that he ran the government is that he demanded that every minister, before taking office, would give him a signed but undated letter of resignation. The Prime Minister could, at any time, enter the date and "accept" the request for the minister's resignation. As Prime Minister, Bartel was also keen to protect minorities in Poland. For example, he tried to improve the position of Polish Jews by removing various laws, dating back to the days when Poland was part of the Russian Empire, which had been specifically directed against Jews. This was one of the reasons that led to his murder by the Germans during World War II.
After these periods as Prime Minister, saddened by the constant political arguments, he decided to retire from politics and return to his professorship of mathematics at Lwów Polytechnic. He was elected rector of the Polytechnic and, also in 1930, he was elected as President of the Polish Mathematical Society. He took over from Wacław Sierpiński, and he held the presidency until 1932 when Stefan Mazurkiewicz became President. He was also honoured by Lwów Polytechnic in 1930 when they awarded him an honorary doctorate. During these years when Bartel was again an academic, he applied his knowledge and skills in geometry to a historical study of perspective in European painting. He lectured on this topic and his lecture series was published as Perspektywa malarska Ⓣ (1928). Edward Ince, reviewing a 1934 German translation of volume 1 of this Polish text, writes:-
The first of two volumes on the art of graphical or applied perspective deals mainly with linear perspective. But perspective, as known to geometers, is a comparatively recent development in the history of art. Then are the paintings which survive at Pompeii, is early Christian art to be considered as non-perspective, or can there be two or more different species of perspective? Within what province does the artist's perspective lie - that of the geometer, that of the physiologist or that of the psychologist? These are among the many questions which the author proposes to answer by studying the development of perspective in graphical art from the earliest ages down to the present day. Circumstances have unfortunately delayed the production of the second volume, and judgment on the full value of the work must be reserved. The first volume is largely a gathering together of evidence; the reasoning out of the case will follow in the second. But judged on its own merits, the present volume deserves the highest praise. The very fact that it is designed to fit into a larger scheme lends it a fascination in striking contrast to the aridity of the usual self-contained treatises on perspective. The reader will find a geometrical diagram, complete with lines, planes and vanishing point, facing the reproduction of a Dürer engraving. He will see the elliptic projection of a circle illustrated by a photograph of the circus at Warsaw with its ring and tiers of seats. He will realise that everything that is artistically best, and most evidently a manifestation of genius, whether best by reason of its pleasing the eye, or best by reason of its suitability to its purpose, in short the essence of pictorial or constructive art, depends in some essential point upon a strict and perhaps toilsome obedience to geometrical laws. Conversely, he will deplore the modern demand for results without effort, for "stunts", for short cuts, and its cult of brilliance without basis. That particularly stupid protest: "But what can Science, what in particular can Mathematics, have to do with Art", is countered by the words of Leonardo da Vinci: "Those who devote themselves to Practice without Theory are as mariners who go to sea in ships without rudder or compass".Let us return to make some comments on his book Descriptive geometry (Polish). The first edition was published in 1918, as we mentioned above, and a second edition appeared in 1922. Edward Ince, reviewing a 1933 German translation of the second edition of the Polish text, writes:-
Here is an excellent introduction to a most attractive branch of descriptive geometry. Except in its applications to civil and mining engineering it has been so neglected in this country that little of its terminology has been standardised. The Figured Plan and Topographical Projection are our nearest equivalents to the title. Because of this lack of training in the principles and methods of topographical projection, practical men find it necessary, in dealing with problems properly belonging to this field. to convert them into problems in biorthoconal projection, and thus to surrender them to the other main branch of descriptive geometry. There is no advantage in doing this; it may introduce unnecessary complications, and certainly means the loss of much of the beauty and simplicity which are peculiar to the topographical method. In fact, at least one great continental school places the topographical method, both in time and in importance, ahead of the method of Monge. This text of Bartel's is admirably straightforward in its methods.After Bartel's death, a third edition was prepared by Antoni Plamitzer who only made minor changes to the text of the third edition. In 1958 a fourth edition was published, being simply a reprint of the third edition. N A Court writes in a review of the fourth edition:-
The book is a comprehensive course in descriptive geometry, including what is called engineering drawing and concluding with the theory of shadows (pp.382-422). The introductory chapter reminds the reader of the basic theorems (and their proofs) of solid geometry that will be made use of in the text. Throughout the book care is taken to present the theoretical foundations on which are based the solutions of the problems considered. The methods follow the classical Mongean lines. ... The book includes more than five hundred and fifty drawings, opens with a very detailed table of contents and ends with a good five page index.In 1937 Bartel returned to politics when he was appointed a Senator of Poland. After the outbreak of World War II, Lwów was seized by the Soviet Union in 1939. In 1940 Bartel was appointed to Moscow and offered a seat in the Soviet parliament. However, he refused the offer. In June 1941 the Germans attacked their former ally Russia and, on 1 July they entered the city of Lwów. One day later he was arrested and imprisoned in Lwów :-
On 2nd of July Bartel was unexpectedly arrested whilst at a discussion meeting with his co-workers at the University. During the following night 36 other professors, Bartel's colleagues, were likewise arrested. This group ... included several internationally acclaimed academics such as the surgeon Tadeusz Ostrowski and a petroleum specialist Pillat. ... Of those arrested only Franciszek Groer was released after being brutally treated, perhaps because he was an internationally known specialist in children's diseases and was especially highly regarded in the USA, and the USA were still precariously neutral. The remaining 35 were summarily and immediately shot. Bartel was not murdered with them. He was kept in prison without any explanation being given for his imprisonment and his wife was permitted to bring him his mathematical books and papers and was required daily to deliver his food.On 16 July he wrote to his wife:-
I assume from talks with officers that I may be in danger because of my former position as Poland's Prime Minister. In Moscow I conferred with Stalin, here I held certain positions, we heard about it even here in Churchill's and Sikorski's speeches. They told me directly, that their aim was to organize co-operation with the Bolsheviks, and who would be better suited for it than me.Bartel was being held at Pelczynska street, and here it looks as if his treatment was reasonable. However, on 21 July he was moved to Lacki street and treated very cruelly. He was ordered to clean the boots of a Ukrainian conscript so that it would be known that:-
... a Polish professor and prime-minister had to polish boots of a Ukrainian stable-boy.He was mocked for having treated Jews and Communists kindly when he was in government but his wife Maria was still allowed to deliver food to him. However:-
... on the 26th July however, her delivery of food was not accepted and she was debarred from entering the prison office to find out why. The 26th July, being Saturday, she had to wait till Monday before she could see the officer in charge of the prison. She was then told that her husband had been shot two days ago.He had been shot by the Germans on 26 July on the orders of Heinrich Himmler. He was survived by his wife Maria, the author of , and their daughter Cecylia.
Bartel received many honours and decorations. These include the Order of the White Eagle (9 November 1932) for outstanding achievements, the Grand Ribbon of the Order of Polonia Restituta (11 November 1936), the French Legion of Honour (class I), the Cross of Valour, the Cross of Independence, and the Silver Cross of Order of Military Virtue (1922).
Article by: J J O'Connor and E F Robertson