It's still not too late. For those who already have travel reservations or for those just contemplating the possibility of going to Europe this summer, there are numerous opportunities to study a wide variety of subjects in virtually any city or country of their choice.

Length of the courses varies from a week to a month. So if your plans are still not definite, one of the summer sessions listed below may be just the way to spend those few extra days. It's a thought, anyway.

Great Britain

England is the most popular choice of traveling students. Although the deadline has expired for this year's liberal arts courses at Edinburgh, Oxford, and London University, as well as for the Shakepeare seminars at Stratford-on-Avon, many opportunities remain for the summer study.

The National Student Association estimates that a student in England will spend about $150 per month for room, board, and tuition. Funds at the larger universities are available for needy American students. Applications at other institutions are not due until the session starts.

Literature courses are offered in late July by the University College in Leicester and in August by the University College of the Southwest in Exeter, Devonshire. The British Drama League holds two sessions, one at Chichester August 1 to 15, and the other at Alnwick, August 31 to September 9, on "Drama and the Theater." The University of Durham sponsors a training program for would-be archaeologists at Corbridge-on-Tyne in late July.

Dublin also opens its doors to visiting students over the summer. Trinity College gives a course on "The Arts in Ireland," University College will provide lectures on "Ireland and the Modern World" and instruction in Gaelic. Tuition for the two-to-three-week courses in only about $40.

France

All the French universities permit summer students to enroll for as little as two weeks of a session. The advantage is that the student does not have to spend the entire summer in one of the most expensive countries on the Continent. Monthly expenses, especially in Paris, may amount to $160 a month.

For those who want to stay on the French Riviera, the University of Aix Marseille offers courses in French language, literature and civilization at the coastal towns of Cannes and Nice. English and American literature will also be taught. The summer session begins in the middle of July and lasts till September.

The Fontainebleau Schools of Music and Fine Arts hold instruction in English on music, painting, sculpture, architecture, interior design, costumes, and scenery designs in the Chateau of Fontainebleau, July through September. Schools in Paris offer numerous language courses for Americans. Different level language schools include the Alliance Francaise, the Institut de Phonetique, specializing in pronunciation, and the Ecole Superieure for French teachers of other countries. Most of the sessions begin in July.

Social sciences are taught at the College European on the Left Bank's Boulevard St. Germain. Also in July, the Ecole du Louvre will hold month long courses on "The Archaeology of the Middle Ages" and "Modern Painting." An "American Summer Course" of liberal arts is available at the Sorbonne, starting July 1. A special course is even offered to those who are interested in "aerial photogrammetry" by the Ecole Nationale des Sciences Geographiques in the month of June. Tutition fees for most courses are as low as $10 to $20.

One of the few courses in Paris conducted in English will be the annual seminar on "Contemporary French Political and Economic Problems" at the Paris Institute of Political Studies in July.

Belgium and Holland

The Belgians offer one summer course on contemporary literature at the Free University of Brussels from July to August 18. A Brussels seminar on "17th Century Flemish Art" is limited to advanced art history students. Living expenses in Belgium are slightly less than in France.

Holland holds an annual conference on "International Law" starting July 19 with visiting foreign lecturers at the Hague. Cost-of-living estimates for a stay in the Netherlands average only about $70 a month for room, board, and tutition.

Other Dutch summer courses include "Science and the Christian Life" in early September given by the Free University of Amsterdam, "Trends in Modern Civilization" in mid-July at the University of Delft, and "Dutch Art of the 17th to 19th centuries" also in July at the Hague Institute for Art History.

Germany

West Germany has made great progress in establishing facilities for summer study since the war. Students' expenditure can be kept at a minimum of $60 monthly.

Americans may study at the Free University of Berlin, August 1 to 15, in the Allied zone of the city. For the less hardy, German language and culture courses are taught to students on different levels at the Universities of Bonn, Frankfort, Freiburg, Heidelberg, Mainz, and Tubingen in August, Heidelberg and Kiel in July.

The University of Cologne will concentrate on "Modern German Literature." At Munich University "Germany's Relations to Her Neighbors" will be studied and analyzed. "The Masterpieces of German Culture" is the title of the seminar planed by the University of Munster. All these courses will be given in the month of August.

Austria

Monthly living expenses in Austria are estimated at $60 and the tutition costs at most universities amount to about $20. Salzburg's International Academy of Fine Arts from July 15 to August 15 and the Mozarteum Academy provide Austria's most notable summer sessions.

Applications for the University of Vienna's school of summer studies in German language, liberal arts, and political science must be received by the Institute of International Education or the University by April 15. Scholarships are given to foreign students.

The Austrian College Society in Alpbach, Tyrol, gives an August seminar on the theme of "Knowledge and Action." At Bad Ischl a discussion in economics is arranged from August 28 to September 2 on the subject of "The Village in Relation to Present-day Industrial Development" by the Upper Austrian Society for Economic Sciences.

Switzerland

In Switzerland, where the estimated cost of living is $120 a month, including tuition, universities are mainly occupied with giving summer language courses in the quatro-lingual state. The universities of Geneva, Lausanne, and Neuchatel teach in French. The canton schools of St. Gallen, Winterthur, and Chur offer German language courses. In southern Switzerland at Bellinzona, the school gives Italian instruction.

Italy

A stay in Italy can cost as little as $50 per month. Italian schools and universities specialize in giving courses in history, music, literature, and fine arts. The University Summer Courses in Aquila, the University of Florence, the Italian University for Foreigners in Perugia, the University of Pisa, the Societa Dante Alighieri, and the University of Urbino give courses in late July about local art treasurers. Perugia and Pisa Universities offer special instruction on Etruscan antiquities.

Of the Italian colleges, only the courses of the American Academy in Rome are conducted in English. Music is taught at the Academia Musicale Chigians of Siena and the Venice Conservatory. The University of Florence adds a special course on Dante July 15 to August 31.

Spain and Portugal

Monthly expenses in Spain vary from $40 to $60. The most important Spanish Universities offering summer courses to foreigners are located at Barcelona, Madrid, Santiago, Seville Valladolid, and Zaragoza. In addition, Spanish language and history instruction is scheduled in special summer schools in Cadiz, Pamplona and Santander. The People's University of Segovia gives a one-month course on art history. Most institutions begin teaching early in July, with the Barcelona, Seville, and Valladolid universities starting in August.

In neighboring Portugal, the cost of living is about the same as in Spain and the Portuguese government offers a number of scholarships to foreign students who want to attend summer sessions. This summer the University of Coimbra is scheduled to have an extensive program of instruction in the fields of language, literature, history of art, archaeology, ethmography, and geography. Some of the liberal arts courses of the University of Lisbon in the capital are conducted in English.

Scandinavia

Tuition fees for summer courses in Sweden are comparatively high. The program offered by the Swedish Institute in Stockholm, including sight-seeing trips to neighboring regions, costs $70.

The Swedish Institute offers in August a political, cultural, and economic survey of "Modern Sweden." Sociology seminars are held by the Universities of Lund and Mullsjo in August and September. The University of Stockholm concentrates on language instruction to foreigners throughout the summer. There is also a summer course in June and July in woodwork, handicrafts, ceramics, painting, drawing, and interior decoration at the Nyckelviksskolans Institute in Viggbyholm.

In Denmark, where the student should estimate on $70 a month, there is a Committee for the Propagation of Knowledge about Denmark Abroad which holds courses in Copenhagen all summer. The tuition for each four-week course on Denmark is $15. Special sessions for men and women at the Fredensborg College of Physical Education are conducted in English July 29 to August 30.

Norway offers only one summer course at the University of Oslo, specifially for American students, which lasts from June 23 to August 4.

Greece and Middle East

In Greece, the American School of Classical Studies makes available Greek art, archaeology, and history and literature courses to graduate students and undergraduates majoring in the Classics.

The only educational institution which offers summer courses for American students outside the continents of Europe and America is the American University in Beirut, Lebanon. Courses for undergraduates include Arabic language, philosophy, and culture.

Study tours and American college summer courses abroad, such as the Yale-Reid Hall Summer Session in Paris, add to the opportunities for college students who want to travel and study during the summer