Introduction 
As with development of repertories, the drawbacks of the repertories also surfaced. Among them the most annoying was the time taken for each repertorisation. In order to overcome this particular demerit many doctors were trying many different methods. Out of this card repertory originates.

The earliest card repertory is that of Dr. William Jefferson Gurnesy, nephew of H.N.Gurnesy. He prepared what was known as “Guernsey’s Boenninghausen Slips” in the year 1888, and made available to the profession in the year 1892.They were long cards of 1.25 and 12.5 inches. All together there are 25000 cards and was printed in alphabetical order the names of remedies used in Bonninghausens work. On the top was given the code number of the rubric there were a separate index where the coded rubrics were given. On each card the remedy has numbers 1 to 4 printed against them depending upon the degree of evaluation of that particular drug for that particular symptom. The rubrics were chosen from the index and the indicated cards were taken out and made to lie side by side so that name of each remedy ran in straight line from left to right. On adding up the exponent of the several remedies, the one securing the highest number is the possible remedy.

Later on Dr. H.C.Allen improved this original work by adding more number of remedies and was called as Allen’s Bonninghausen slips. In 1912 Dr. Marget Tayler made punched card repertory based on Kent’s repertory. But this was not completed and published, because the Dr. Kent discouraged her from the venture. In 1913 Welch and Houston made a loose punched card repertory, based on Kents general and consists of 134 symptoms. Dr. Gladwin favored the converting Kent’s generals into cards and the particular to work out from the book. Dr. Pulford ventured to convert most of the Kent into cards but never finished it.
Dr. Field did the most important work on Card repertory in the year 1922. This work was mostly based on Kent’s repertory. But he added Boger’s numerous annotations and corrections and of Dr. Skinners. It consists of approximately 6800 cards 360 remedies were represented with a provision of adding 40 more. It is he who coded the names of the remedies into numbers for the first time. But unfortunately it has certain defects which prevent many times successful repertorisation mainly, only first and second grade remedies were punched out in most cards, the cards were thick and blocked the remedies very easily.  

Boger brought his famous Card repertory in 1928 with a forward from Dr. L.D.Dawale. Dr.J.G.weiss of Detroit and Dr.R.H.Farely published a spindle repertory in 1950. A year later Dr.Marcoz Jamenez brought out a card repertory containing 600 large sized cards, most of the major mental symptoms and generals were included in it. He was the first to introduce evaluation of drugs in card repertory. 

Dr. P. Shankaran in the year 1950 published his card repertory based on Dr. Boger but with more remedies and larger number of rubrics.
 
The Kishore Cards. 
In the year 1959, kishore card repertory was published, on the basis of Kent’s repertory and it contain 3500 cards. The second edition contains 10000 cards and 600 remedies were represented in them. Different types of holes represented the three evaluation of Kent’s. The provision for enlarging by adding rubrics and remedies is also made.

The card. 
For proper repertoristion the features of the card should be understood. 
The features are,
1. The card has 65 vertical columns numbering from 1 to 65, from left to right. They are numbered in the bottom as small type.
2. The first 4 vertical columns are kept apart and meant for punching the number of rubrics. Vertical lines do not divide this.
3. The rest of the vertical columns are meant for the coded remedies which has this particular symptoms. The remedies are indicated by punched holes these punched holes can be read as follows. The punched number (I.e., from0 to 9) is placed against the small digit placed at the bottom of the column containing that particular hole and that gives as the number of the remedy The remedy can be decoded from the list of remedies and their code number.
4. On the top of the card is printed the name of the Rubric.
5. The three different shapes of the holes represent the three different grades of the Kent. The round hole represents the last grade, the oval hole the second grade and the third grade was represented by double punched out hole.
6.  The isolated punch hole on the top of the card is not meant for repertorisation.
 
List of remedies and there code numbers 
The code number starts from 50. The reason is technical and is related to the procedure for the reading of the numbers in the cards. There are 65 columns in the cards and they are numbered 1 to 65 at the bottom of each column in very small type. The method of numbering each remedy is as follows. The last digit only of a code number is punched on the card. Thus for the code number 50 zero only is punched in the column 5 of the card. For say code number 546. Six only is punched in column 64.